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Our Solar System Might Have TWO Hidden Planets

Video vocabulary

below

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US / bɪ'ləʊ /

UK / bɪˈlo /

A1
  • preposition
  • In a lower position, place, or level

average

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US / 'ævərɪdʒ /

UK / ˈævərɪdʒ, ˈævrɪdʒ /

A2
  • adjecitve
  • Typical or normal; usual; ordinary
  • noun
  • Total of numbers divided by the number of items
  • verb
  • To add numbers then divide by the number of items

body

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US / ˈbɒd.i /

UK / ˈbɑdi /

A1
  • noun
  • An object distinct from other objects
  • A group of people involved in an activity together
  • Main part of something
  • A person's physical self

jupiter

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US / ˈdʒu:pɪtə(r) /

UK / ˈdʒupɪtɚ /

A1
  • proper noun
  • The largest planet in the solar system, a gas giant which is the fifth in order from the sun and one
  • The chief god of the Roman state religion, originally a sky god associated with thunder and lightnin

inner

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US / ˈɪnə(r) /

UK / ˈɪnɚ /

A1
  • adjecitve
  • Concerning the inside part of something

outside

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US / ˌaʊtˈsaɪd /

UK / aʊtˈsaɪd, ˈaʊtˌsaɪd /

A2
  • adverb
  • Beyond the limits or edges of some place, thing
  • noun
  • Area around or near something, such as a building
  • preposition
  • Beyond the limits or edges of some place, thing

make

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US / meɪk /

UK / mek /

A1
  • noun
  • Product made by a particular company; brand
  • verb
  • To arrange or prepare something e.g. dinner
  • To get to (a place) on time
  • To gain the status of (teacher, lawyer, etc.)
  • To create something by putting things together
  • To earn a certain amount of money at a job
  • To cause or force a person to do something
  • To cause something to happen or be formed

account

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US / ə'kaʊnt /

UK / əˈkaʊnt /

A1
  • noun
  • An advantage
  • Arrangement with a bank to keep your money for you
  • An invoice for things bought
  • Arrangement whereby you can use online services
  • A description, often written, of events; report

evidence

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US / 'evɪdəns /

UK / ˈɛvɪdəns /

A1
  • noun
  • Factual proof that helps to establish the truth

pretty

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US / 'prɪtɪ /

UK / ˈprɪti /

A1
  • adjecitve
  • Being attractive to the eye in a simple way
  • adverb
  • Very; to a great degree

observation

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US / ˌɒbzəˈveɪʃn /

UK / ˌɑbzɚˈveʃən /

B1
  • noun
  • Remark or comment on something you noticed
  • Practice of performing actions required by rules

possible

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US / ˈpɒsəbl /

UK / ˈpɑsəbəl /

A1
  • adjecitve
  • Being able or appropriate for a task or purpose
  • Having a chance of happening, or being true

solar

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US / 'səʊlə(r) /

UK / ˈsolɚ /

B1
  • adjecitve
  • Concerning the sun, or its heat

direction

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US / də'rekʃn /

UK / dɪˈrɛkʃən, daɪ- /

A2
  • noun
  • When someone tells people what to do
  • Describes the way you are going, e.g. North

huge

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US / hju:dʒ /

UK / hjudʒ /

A2
  • adjecitve
  • Very very large

move

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US / mu:v /

UK / muv /

A1
  • noun
  • Act of moving a playing piece in chess, etc.
  • An action; doing something
  • Step taken to achieve a goal
  • verb
  • To cause someone to have certain emotions
  • To cause something to change to a different place
  • To change where people live or a business operates
  • To take action to do or achieve something

nowhere

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US / 'nəʊweə(r) /

UK / ˈnoˌhwɛr, -ˌwɛr /

A2
  • adverb
  • Not in or at any place; no place

technique

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US / tekˈni:k /

UK / tɛkˈnik /

A2
  • noun
  • Way of doing by using special knowledge or skill

their

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US / ðɛː /

UK / ðer /

A1
  • determiner
  • Belonging to them

way

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US / weɪ /

UK / we /

A1
  • adverb
  • Used to emphasize the amount of something
  • noun
  • Particular aspect of something being thought about
  • One of various choices that could be made
  • Particular existing condition or state
  • (Often long) distance or length of time
  • How something is done
  • Route to go to a place
  • Small street
  • Usual behavior, emotions or habits of someone

all

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US / ɔ:l /

UK / ɔl /

A1
  • adverb
  • Completely; totally
  • determiner
  • Being every one of something
  • pronoun
  • 100% of something; the complete amount

chance

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US / tʃɑ:ns /

UK / tʃæns /

A1
  • adjecitve
  • Happening by luck; not planned
  • Taking a risk to try something
  • noun
  • The way something happens without planning
  • An opportunity; favorable circumstances, situation
  • The possibility that something will happen
  • verb
  • To occur just through luck; happen
  • To take a risk to try something

empty

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US / 'emptɪ /

UK / ˈɛmpti /

A1
  • adjecitve
  • Containing nothing; with no contents
  • Without emotions, feelings, meaning or force
  • noun
  • Item, e.g. a bottle, whose contents have been used
  • verb
  • To remove the contents from something

belt

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US / belt /

UK / bɛlt /

A2
  • noun
  • Band of material worn around a person's waist
  • Area with a lot of a particular feature e.g. corn
  • verb
  • To leave somewhere quickly (UK use)
  • To put a belt around something or someone

its

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US / ɪts /

UK / ɪts /

A1
  • adjecitve
  • Referring to or belonging to ‘it’
  • determiner
  • Of something; belonging or related to something
  • other
  • Possessive form of “it”

strange

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US / streɪndʒ /

UK / strendʒ /

A1
  • adjecitve
  • Unusual or odd; surprising because unexpected

super

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US / ˈsu:pə(r) /

UK / ˈsupɚ /

A2
  • adjecitve
  • Of the highest quality; great; marvelous

close

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US / kləʊz /

UK / kloʊz /

A1
  • adjecitve
  • Almost; near
  • (Of a friend) well-known; liked by others
  • Being near or related
  • Similar; nearly the same
  • verb
  • To come progressively nearer to something
  • To end; to bring to an end
  • To make something shut; stop from being open

distant

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US / 'dɪstənt /

UK / ˈdɪstənt /

B1
  • adjecitve
  • Unfriendly; cold
  • Existing or happening far away in place or time
  • (Of relationships) not being closely related

discover

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US / dɪˈskʌvə(r) /

UK / dɪˈskʌvɚ /

A2
  • verb
  • To find something new that was not known before

link

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US / lɪŋk /

UK / lɪŋk /

A2
  • noun
  • Any one of the rings that are part of a chain
  • Connection between two or more things or people
  • Webpage item you click to go to another webpage
  • verb
  • To join or connect together

take

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US / teɪk /

UK / tek /

A1
  • noun
  • Filming of a single scene for TV or the movies
  • verb
  • To accept something that is offered
  • To use a method of traveling, e.g. a bus or train
  • To use a camera to make (a photo)
  • To pick up something and go away with it
  • To study a subject in school
  • To attempt to pass (an exam)
  • To require a certain amount of time, money, space

spot

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US / spɒt /

UK / spɑt /

A2
  • noun
  • A certain place or area
  • A difficult time; awkward situation
  • Place or ranking on a list
  • A small amount of (substance help hard work etc.)
  • Mark caused by a drop of liquid, food, etc.
  • verb
  • To see someone or something by chance

rocky

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US / 'rɒkɪ /

UK / ˈrɑki /

A1
  • adjecitve
  • (Of a marriage, etc.) involving many difficulties
  • With abundant rocks or stones

building

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US / ˈbɪldɪŋ /

UK / ˈbɪldɪŋ /

A1
  • noun
  • A structure with a roof and walls, e.g. a house
  • verb
  • To establish e.g. a reputation, over time
  • To construct a house, office, factory

prove

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US / pru:v /

UK / pruv /

A2
  • verb
  • To demonstrate truth by providing evidence

old

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US / əʊld /

UK / old /

A1
  • adjecitve
  • Having existed for a long time, not young or new
  • Age of a person since birth

bit

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US / bɪt /

UK / bɪt /

A1
  • noun
  • Device put in a horse's mouth to control it
  • Small piece of something
  • verb
  • (E.g. of fish) to take bait and be caught

look

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US / lʊk /

UK / lʊk /

A1
  • noun
  • Person's beauty or physical attractiveness
  • Particular style of dress, clothes, or appearance
  • The way someone, something appears to be
  • Act of searching for or examining something
  • verb
  • To appear to be; seem

kilometre

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US / ˈkɪləmi:tə(r) /

UK / ˈkɪləmiːtər /

A1
  • noun
  • A metric unit of length equal to 1000 metres

scishow

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US / /

UK / /

A1

thank

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US / θæŋk /

UK / θæŋk /

A1
  • verb
  • To tell someone you are grateful to them

viewer

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US / ˈvju:ə(r) /

UK / ˈvjuɚ /

A2
  • noun
  • Special machine to look at pictures
  • Someone who watches, e.g. television

announce

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US / əˈnaʊns /

UK / əˈnaʊns /

A2
  • verb
  • To make a public statement about a plan, decision

between

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US / bɪˈtwi:n /

UK / bɪˈtwin /

A1
  • preposition
  • From one person, thing, or place, to another
  • In the space that separates two objects
  • Among two or more people who share something

background

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US / ˈbækgraʊnd /

UK / ˈbækˌɡraʊnd /

A2
  • noun
  • Images, color, or information behind the main one
  • Someone's personal work and educational history
  • A position not as important as the main event
  • Past events that influence things in the present

tilt

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US / tɪlt /

UK / tɪlt /

B2
  • noun
  • Position in which one side is above the other
  • verb
  • To change to a newly preferred idea or opinion
  • To move something away from the upright
  • To influence (public opinion) in a certain way

they

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US / ðeɪ /

UK / ðe /

A1
  • pronoun
  • Two or more people, animals, or things

very

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US / 'verɪ /

UK / ˈvɛri /

A1
  • adjecitve
  • Concerning a large degree or amount
  • adverb
  • A lot; much; many
  • Used to stress or emphasize a noun

both

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US / bəuθ /

UK / boθ /

A1
  • determiner
  • Used to refer to two things at the same time
  • pronoun
  • Used to refer to two things at the same time

change

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US / tʃeɪndʒ /

UK / tʃendʒ /

A1
  • noun
  • Exchange of one set of clothes for another
  • Money in the form of coins instead of paper
  • Money returned after giving too much
  • Act of making or becoming something else
  • verb
  • To exchange one set of clothes for another
  • To exchange one kind of money for another
  • To replace something with another thing
  • To make or become something else
  • To go from one train, bus, etc. and go to another

offline

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US / ˌɒfˈlaɪn /

UK / ˌɔːfˈlaɪn /

A1
  • adjecitve
  • Not connected to a central computer or computer network

path

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US / pɑ:θ /

UK / pæθ, pɑθ /

A2
  • noun
  • Method of living leading to a particular result
  • Track made with stones, by walking over the ground

run

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US / rʌn /

UK / rʌn /

A1
  • noun
  • Journey between two places made by ship or car
  • Series of similar things or successes and failures
  • Act of running; exercise of running
  • verb
  • To depart or travel according to a schedule
  • To cause an animal to move in a certain direction
  • (Of an engine) to be operating
  • To start or use a computer program
  • To flow in a certain direction, like a liquid
  • To manage or operate a business
  • To operate or drive something
  • (Of a road) to go from one place to another
  • To move your legs faster than walking

suggest

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US / səˈdʒest /

UK / səɡˈdʒɛst, səˈdʒɛst /

A1
  • verb
  • To mention something that could be done; propose

free

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US / fri: /

UK / fri /

A1
  • adjecitve
  • Living, happening without being controlled
  • Costing no money
  • Not working; not busy
  • verb
  • To release (e.g. bird) from a cage or prison

humongous

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US / hju:ˈmʌŋgəs /

UK / hjuˈmɑŋɡəs, -ˈmʌŋ- /

A1
  • adjecitve
  • Very large

may

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US / meɪ /

UK / me /

A1
  • noun
  • 5th month of the year
  • other
  • Used to express a desire
  • Expresses permission, possibility or probability
  • Used to show that a thing could be true

space

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US / speɪs /

UK / spes /

A1
  • noun
  • Empty area kept for a specific reason, like a car
  • Empty area with nothing in it
  • Area in the sky where the stars are
  • Area between written words on a page
  • verb
  • To make a certain distance or time between

someday

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US / 'sʌmdeɪ /

UK / 'sʌmˌdeɪ /

C2
  • adverb
  • At some unspecified time in the future

subscription

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US / səbˈskrɪpʃn /

UK / səbˈskrɪpʃən /

B1
  • noun
  • Regular payment for a service, magazine etc.

accord

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US / ə'kɔ:d /

UK / əˈkɔ:rd /

B1
  • noun
  • Agreement or harmony
  • An agreement or treaty between countries
  • verb
  • To be in harmony or agreement; consent
  • To give (someone) the respect due to them

word

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US / wɜ:d /

UK / wɚd /

A1
  • noun
  • Unit of language that has a meaning
  • Promise
  • Short remark or piece of information
  • verb
  • To express something by choosing particular words

see

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US / si: /

UK / si /

A1
  • verb
  • To go on a date with someone
  • To predict whether something is, or will be true
  • To understand what someone says
  • To use your eyes to look at something
  • To visit a place often for sightseeing or pleasure
  • To visit or meet with someone
  • To find out by waiting or looking
  • To watch (a game, movie or TV show)

this

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US / ðɪs /

UK / ðɪs /

A1
  • adjecitve
  • Used to indicate something already been discussed
  • Used to indicate something happening around now
  • adverb
  • An indication by a physical motion or gesture
  • A specific amount of
  • determiner
  • Person, thing, or idea near you
  • pronoun
  • Person, thing that has already been discussed

premium

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US / ˈpri:miəm /

UK / ˈprimiəm /

B1
  • adjecitve
  • Having a higher than normal quality
  • noun
  • Money paid as a fee for insurance

apparently

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US / əˈpærəntli /

UK / əˈpærəntlɪ /

A2
  • adverb
  • According to what you heard; from what can be seen

collapse

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US / kə'læps /

UK / kəˈlæps /

B1
  • verb
  • To fold (e.g. a stroller) down to make it smaller
  • To suddenly fall down or break apart into pieces
  • To fall down suddenly due to being ill or tired

brief

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US / bri:f /

UK / brif /

A2
  • adjecitve
  • (Of period of time) short; using few words
  • noun
  • Information and instructions given for a meeting
  • verb
  • To give information/instructions before a meeting

orbit

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US / 'ɔ:bɪt /

UK / ˈɔrbɪt /

B2
  • noun
  • Path an object takes as it circles another object
  • verb
  • To go around another object (often in space)

teach

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US / ti:tʃ /

UK / titʃ /

A1
  • verb
  • To help someone learn or do something

pluto

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US / ˈpluːtəʊ /

UK / ˈpluːtoʊ /

A1
  • other
  • A small planet and the farthest known planet from the sun; it has the most elliptical orbit of all t
  • A cartoon character created by Walt Disney

whose

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US / hu:z /

UK / huz /

A1
  • pronoun
  • Refers to the person who owns something

with

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US / wɪð /

UK / wɪð, wɪθ /

A1
  • preposition
  • As an employee of a certain company
  • Against something or someone
  • By using something as a means
  • Due to; because of
  • Including
  • Possessing as a feature
  • Related to
  • (Of the manner/attitude by which you do something)
  • Used to express that people or things are together

tweak

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US / twi:k /

UK / twik /

C1
  • noun
  • A small change or adjustment
  • verb
  • To make a small change or adjustment

clump

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US / klʌmp /

UK / klʌmp /

B2
  • noun
  • Mass or pile of something such as soil
  • Small group of trees, etc. growing near each other

hear

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US / hɪə(r) /

UK / hɪr /

A1
  • verb
  • To be aware of sound; to perceive with the ear
  • To be told or find out information or facts
  • To consider or listen to a court case

also

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US / 'ɔ:lsəʊ /

UK / ˈɔlso /

A1
  • adverb
  • In addition; too; in a similar way

interactive

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US / ˌɪntərˈæktɪv /

UK / ˌɪntɚˈæktɪv /

A2
  • adjecitve
  • Acting or influencing others

kind

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US / kaɪnd /

UK / kaɪnd /

A1
  • adjecitve
  • In a caring and helpful manner
  • friendly and considerate
  • noun
  • One type of thing

notice

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US / 'nəʊtɪs /

UK / ˈnotɪs /

A1
  • noun
  • Time by when you must leave, e.g. if you are fired
  • Paper with an announcement, e.g. pinned to a board
  • verb
  • To become aware by sight, touch, or hearing

live

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US / lɪv /

UK / liv /

A1
  • adjecitve
  • Being broadcast as events happen, not recorded
  • Carrying electric current; able to give a shock
  • Glowing because burning; hot
  • Not yet killed (for food)
  • adverb
  • (Music, drama) as it is performed
  • verb
  • To be alive
  • To experience a particular type of life
  • To make your home in a house or town

sun

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US / sʌn /

UK / sʌn /

A1
  • noun
  • Light and heat coming from a large star in the sky
  • Hot shining star the Earth moves around
  • verb
  • To lie in the sunshine and enjoy its warmth

how

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US / haʊ /

UK / haʊ /

A1
  • adjecitve
  • To what degree? in what amount?
  • adverb
  • (Used to explain the way to do something)
  • exclamation
  • For what purpose or reason?
  • (Used to ask someone or something's condition)

unlikely

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US / ʌnˈlaɪkli /

UK / ʌnˈlaɪkli /

A2
  • adjecitve
  • Not seeming suitable for a particular purpose
  • adverb
  • Not likely to happen; not likely to be the truth

five

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US / faɪv /

UK / faɪv /

A1
  • number
  • 5

year

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US / jə: /

UK / jɪr /

A1
  • noun
  • Unit of time equal to 12 months or 365 or 366 days
  • Used to refer to the age of a person

you

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US / jʊ /

UK / ju /

A1
  • pronoun
  • Person someone is speaking or writing to
  • Person or people in general

demotion

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US / diːˈməʊʃn /

UK / diːˈmoʊʃn /

C2
  • noun
  • Act of lowering someone in rank or position

center

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US / 'sentə /

UK / ˈsɛntɚ /

A1
  • noun
  • Community place people go health or social reasons
  • Place in the middle of something
  • Person or thing that is attracting attention
  • verb
  • To direct focus toward something

might

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US / maɪt /

UK / maɪt /

A1
  • other
  • Used to politely request an action
  • Used to express that something could happen
  • Power, strength, force or influence

exist

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US / ɪɡ'zɪst /

UK / ɪɡˈzɪst /

A1
  • verb
  • To be present, alive or real

kuiper

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US / 'kʌ /

UK / 'kʌ /

A1

end

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US / end /

UK / ɛnd /

A1
  • noun
  • The point where a process or activity stops
  • A point that marks the limit of something; finish
  • Goal or desired result
  • The tip, edge or limit of something
  • verb
  • To be the last part of something

researcher

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US / rɪ'sɜ:tʃə(r) /

UK / rɪˈsətʃɚ /

A2
  • noun
  • Someone who works to find new facts and ideas

hiding

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US / ˈhaɪdɪŋ /

UK / ˈhaɪdɪŋ /

A1
  • noun
  • A severe beating
  • verb
  • To go to, or put a thing where it can't be found

ice

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US / aɪs /

UK / aɪs /

A1
  • noun
  • Frozen gas or liquid, esp. water
  • Sweet food made of frozen cream, or juices
  • verb
  • To make something cold by putting on frozen water
  • To spread a sweet and creamy substance on a cake

suburb

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US / ˈsʌbɜ:b /

UK / ˈsʌbɜ:rb /

B1
  • noun
  • Residential area on the outskirts of a city

tug

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US / tʌg /

UK / tʌɡ /

B1
  • noun
  • Pull at something that is hard or sudden
  • verb
  • To pull (something) hard or suddenly

extra

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US / 'ekstrə /

UK / 'ekstrə /

A2
  • adjecitve
  • More than necessary; additional
  • noun
  • Items more than you need; additional items
  • Person who has a small part in a movie
  • Special version of a newspaper

flash

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US / flæʃ /

UK / flæʃ /

B1
  • noun
  • Sudden and brief appearance of something
  • Light used by a camera to brighten the area
  • Sudden feeling, idea or occurrence
  • Publicly exposing your genitals to others
  • Sudden bright light
  • Showing something very quickly and briefly
  • Light used in the dark, powered by batteries
  • verb
  • To appear suddenly and briefly
  • To publicly expose your genitals to others
  • To shine brightly very suddenly and briefly
  • To show something very quickly and briefly

have

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US / həv /

UK / hæv /

A1
  • verb
  • To drink, smoke, eat or use something
  • To experience the effects of something
  • To organize an event, or join in an activity
  • To own, possess, or hold something
  • To cause to happen or produce a particular effect

before

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US / bɪˈfɔ:(r) /

UK / bɪˈfɔr,-ˈfor /

A1
  • adverb
  • At a time earlier than the present; previously
  • conjunction
  • In advance of something happening
  • preposition
  • In front of someone or something

merely

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US / ˈmiəli /

UK / ˈmɪrli /

B1
  • adverb
  • Only, simply, or nothing more than

outer

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US / ˈaʊtə(r) /

UK / ˈaʊtɚ /

A1
  • adjecitve
  • Far away
  • Being farther away from the center
  • On or around something; away from the center

bummer

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US / ˈbʌmə(r) /

UK / ˈbʌmɚ /

C2
  • noun
  • Irritating or disappointing experience

away

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US / ə'weɪ /

UK / əˈwe /

A1
  • adjecitve
  • Not present
  • adverb
  • Disappear completely
  • Doing something with a lot of energy
  • Not here; far from here; in a different direction
  • To a different area, location

calculate

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US / 'kælkjʊleɪt /

UK / ˈkælkjəˌlet /

B2
  • verb
  • To find an answer using mathematics
  • To make an educated guess about something

model

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US / ˈmɒdl /

UK / ˈmɑ:dl /

A2
  • adjecitve
  • Being an excellent example of
  • noun
  • Person who wears fashion to show it to the public
  • A small scale copy of a full original
  • verb
  • To wear and display clothes at a fashion show
  • To make a small scale copy of a full original

wood

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US / wʊd /

UK / wʊd /

A2
  • adjecitve
  • Living or existing in the woods
  • Made from the material from trees
  • noun
  • Person's name
  • Land covered with trees, smaller than a forest
  • Cut tree used for making fires or building things
  • verb
  • To plant an area of land with trees

unit

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US / ˈju:nɪt /

UK / ˈjunɪt /

B2
  • noun
  • One apartment in a building
  • Group of people, e.g. soldiers, that work together
  • A chapter of a textbook
  • A standard of measurement of something
  • Single item made by a company

clear

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US / klɪə(r) /

UK / klɪr /

A1
  • adjecitve
  • Empty; without anything in it or on it
  • Being certain and without doubt
  • Being without any streaks, spots, or cracks
  • Easy to understand; well-explained; obvious
  • adverb
  • Completely; entirely; through the whole of
  • Away from; free from
  • verb
  • To recover from or remove a problem
  • To get rid of the entire contents of
  • To give permission for something to happen
  • To make a place or surface empty by removing
  • To prove that someone is not guilty or to blame

hand

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US / hænd /

UK / hænd /

A1
  • noun
  • Cards given to a player in a card game
  • Piece of a clock that points to the time
  • Someone who performs physical tasks or work
  • Body part at the end of a person's arm
  • Help for someone performing a particular action
  • Condition of having power or influence
  • Member of the crew of a ship
  • verb
  • To give something to someone personally

next

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US / nekst /

UK / nɛkst /

A1
  • adverb
  • The one that follows another in time or order
  • At a time or place directly after the present one
  • noun
  • The one that follows after
  • adjecitve
  • Immediately after the previous one
  • First occurrence after the present one

quickly

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US / ˈkwɪkli /

UK / ˈkwɪklɪ /

A1
  • adverb
  • Without taking a lot of time; fast

plural

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US / ˈpluərəl /

UK / ˈplʊrəl /

B1
  • adjecitve
  • Being more than one person or thing

could

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US / kəd /

UK / kʊd /

A1
  • other
  • Past form of 'can' to mean have ability
  • Used to ask for something politely, or to offer

dwarf

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US / dwɔ:f /

UK / dwɔrf /

B2
  • noun
  • Person of short stature, due to medical condition

know

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US / nəʊ /

UK / noʊ /

A1
  • verb
  • To be familiar with a person or place, thing
  • To feel sure or be convinced about something
  • To discover or be aware of something
  • To be able to distinguish
  • To have knowledge of things

starlight

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US / ˈstɑːlaɪt /

UK / ˈstɑːrlaɪt /

A1
  • noun
  • Light of the stars

far

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US / fɑ:(r) /

UK / fɑr /

A1
  • adjecitve
  • A long way away
  • Being a long way away
  • adverb
  • To a large degree or extent

hide

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US / haɪd /

UK / haɪd /

A1
  • noun
  • The skin of an animal used for making leather
  • verb
  • To go to, or put a thing where it can't be found

call

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US / kɔ:l /

UK / kɔl /

A1
  • noun
  • A order or request for action
  • The sound an animal makes, often when in danger
  • A correct prediction, e.g. a decision in a game
  • A short visit to a place or person
  • A decision by a referee or umpire in a game
  • verb
  • To make a request or order for action
  • (Animal) to make sounds to warn of danger
  • To announce the date of an election
  • To make a judgment about something
  • To give someone or something a name
  • To guess in advance the result or outcome
  • To visit a place or person for a short time
  • To phone someone
  • To speak, announce or shout in a loud voice

icy

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US / 'aɪsɪ /

UK / ˈaɪsi /

A2
  • adjecitve
  • Very cold; with frozen water on it, or in it
  • Not very friendly or kind

proof

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US / pru:f /

UK / pruf /

A2
  • noun
  • Act of showing that something exists or is true
  • Version of a document to be checked for errors
  • Special coating that protects something
  • Something which shows that something else is true
  • verb
  • To read a written work to check for mistakes
  • To protect by painting on a special coating

picture

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US / 'pɪktʃə(r) /

UK / ˈpɪktʃɚ /

A1
  • noun
  • General situation or state of being
  • Mental image of what something is or looks like
  • Movie; film
  • Painting, drawing or photograph on paper or screen
  • verb
  • To understand or imagine something
  • To imagine someone or something in an image

uranus

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US / ˈjʊərənəs /

UK / ˈjʊrənəs, jʊˈrenəs /

A1
  • other
  • A giant planet with a ring of ice particles; the th planet from the sun has a blue-green color and m

where

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US / hwɛə /

UK / hwɛr, wɛr /

A1
  • conjunction
  • At or in the place which
  • In whatever place
  • pronoun
  • Word you use to ask the location of something

and

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US / ənd /

UK / ənd, ən,ænd /

A1
  • conjunction
  • Used to refer to two or more things
  • Plus; in addition; on top of that
  • Used to introduce an action that follows another

base

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US / beɪs /

UK / bes /

A2
  • noun
  • Place military personnel live, train, and operate
  • Bottom part of an object that touches a surface
  • Unit of counting, e.g. 10 for counting
  • Most important idea or ingredient to add others
  • Origin or start from which something came
  • Main place where an organization or a person works
  • verb
  • To use as the starting point or origin for
  • To have as the main location for (company, etc.)

back

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US / bæk /

UK / bæk /

A1
  • adjecitve
  • Farthest from the front e.g. in a classroom
  • adverb
  • Have returned to a place you were before
  • noun
  • The part of a chair that the upper body leans upon
  • Location at the rear of something
  • The reverse of side something
  • Area on the rear of your body
  • verb
  • To bet money on something
  • To go backwards in a car
  • To support and encourage someone or some cause

hope

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US / həʊp /

UK / hop /

A1
  • noun
  • When you wish something will happen; what you wish
  • verb
  • To expect and want something to happen

lot

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US / lɒt /

UK / lɑt /

A1
  • noun
  • What happens to a person in life from chance; fate
  • A group of people seen together
  • Item for sale at an auction
  • Small area of land used for a purpose e.g. parking

propose

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US / prə'pəʊz /

UK / prəˈpoz /

A2
  • verb
  • To make an offer of marriage
  • To offer or put forward an idea for consideration

any

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US / 'enɪ /

UK / ˈɛni /

A1
  • adjecitve
  • One, or some, no matter which
  • pronoun
  • One (thing) of many; some

come

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US / kʌm /

UK / kʌm /

A1
  • verb
  • To arrive at a place
  • (Of mail) to be delivered
  • To move toward someone; go with someone
  • To reach a certain point or state

distance

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US / 'dɪstəns /

UK / ˈdɪstəns /

A2
  • noun
  • Lack of friendliness toward another person
  • Amount of space between two places or things
  • verb
  • To make it clear that you are not involved

help

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US / help /

UK / hɛlp /

A1
  • noun
  • Something given to enable a person to do something
  • Assistance given to someone in need
  • Someone who makes something easier or possible
  • verb
  • To act to enable a person to do something; assist
  • To make something better or less difficult

observe

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US / əbˈzɜ:v /

UK / əbˈzɜ:rv /

A2
  • verb
  • To celebrate a particular holiday/religious event
  • To obey or follow laws, rules, or customs
  • To watch carefully; to make a comment

nine

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US / naɪn /

UK / naɪn /

A1
  • number
  • 9

normally

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US / ˈnɔ:məli /

UK / ˈnɔːrməli /

B1
  • adverb
  • In the manner that is usual or ordinary

put

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US / pʊt /

UK / pʊt /

A1
  • phrasal verb
  • to make a light stop shining by pressing or moving a switch
  • verb
  • To move or place a thing in a particular position
  • To rate something in importance or value
  • To write or say something in a certain manner

only

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US / ˈəunli /

UK / ˈonli /

A1
  • adverb
  • Just one; just that amount or thing; not more than
  • Not very important or serious
  • Just that type of thing, person
  • Short time ago; not before a certain time
  • conjunction
  • Except; but

ten

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US / ten /

UK / tɛn /

A1
  • number
  • 10

reclassify

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US / ˌriːˈklæsɪfaɪ /

UK / ˌriːˈklæsɪfaɪ /

B2
  • verb
  • To re-arrange things into groups of similar items

sometimes

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US / ˈsʌmtaɪmz /

UK / ˈsʌmˌtaɪmz /

A1
  • adverb
  • Only at certain times; occasionally

visual

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US / 'vɪʒʊəl /

UK / ˈvɪʒuəl /

A2
  • adjecitve
  • Of or relating to vision
  • noun
  • Pictures/images used to help audience understand

contextualize

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US / kənˈtekstʃuəlaɪz /

UK / kənˈtɛkstʃuəˌlaɪz /

A1
  • verb
  • To see the larger picture of something

investigate

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US / ɪn'vestɪɡeɪt /

UK / ɪnˈvɛstɪˌɡet /

A2
  • verb
  • To try to find out facts; to carry out research

keep

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US / ki:p /

UK / kip /

A1
  • noun
  • Large, strong tower in the middle of a castle
  • Money spent on you so you can live in a place
  • verb
  • To continue doing something; not to stop
  • To stop balls going in a goal in sports
  • To not give back or return something
  • (Of food) to not spoil or not rot
  • To take possession of something to own, e.g. a pet
  • To have and continue to hold something
  • To do something that you have promised or agreed
  • To stay in a certain place or condition
  • To maintain the rules

name

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US / neɪm /

UK / nem /

A1
  • noun
  • What something or someone is called
  • verb
  • To state what someone is called, e.g. John

slash

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US / slæʃ /

UK / slæʃ /

B2
  • noun
  • Line ( / ) used in writing
  • Long, deep cut, caused by a sharp object
  • verb
  • To cut violently with a sharp object
  • To decrease something by a large amount

something

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US / ˈsʌmθɪŋ /

UK / ˈsʌmθɪŋ /

A1
  • adverb
  • In some degree or measure
  • noun
  • a person or thing of some value or consequence
  • pronoun
  • Thing that is not yet known or named
  • Approximately

along

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US / əˈlɒŋ /

UK / əˈlɔ:ŋ /

A1
  • adverb
  • As a companion; taken with someone
  • preposition
  • At a point on a line

conception

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US / kənˈsepʃn /

UK / kənˈsɛpʃən /

B1
  • noun
  • Moment when a woman's pregnancy begins
  • Idea about something, or how it should be

from

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US / frəm /

UK / frʌm, frɑm,frəm /

A1
  • preposition
  • Starting at a particular place, time or level

out

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US / aʊt /

UK / aʊt /

A1
  • adverb
  • No longer stylish (e.g. fashion)
  • Away from home, business, or the usual place
  • In a direction/movement away from inside or center
  • noun
  • Act when a batter cannot continue playing
  • verb
  • To tell people a secret

over

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US / 'əʊvə(r) /

UK / ˈovɚ /

A1
  • adverb
  • Finished; no longer happening
  • Towards the ground/away from a standing position
  • noun
  • A set of six consecutive balls bowled in cricket
  • other
  • Finished
  • preposition
  • Showing the relation when a thing is above another
  • On or covering something
  • Above or across something
  • More than you need
  • From one side to the other
  • In the direction of; toward

direct

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US / də'rekt /

UK / dɪˈrɛkt, daɪ- /

A2
  • adverb
  • Coming straight from something
  • verb
  • To tell someone in a very clear way to do something
  • To show the way by conducting or leading
  • To control the acting in a movie or play

large

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US / lɑ:dʒ /

UK / lɑ:rdʒ /

A1
  • adjecitve
  • Big; of great size; broad, tall, wide, or fat

most

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US / məʊst /

UK / most /

A1
  • adverb
  • Very; extremely
  • Greatest possible degree
  • pronoun
  • Nearly all of something

rest

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US / rest /

UK / rɛst /

A1
  • noun
  • Time when one relaxes, sleeps, or is inactive
  • State in which there is a lack of motion
  • Part of something remaining after some was used
  • verb
  • To stop working or avoid activity to recover
  • (Of dead person) to lie in a grave
  • To lean, support or place something against
  • To not be tired because you had enough sleep

catch

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US / kætʃ /

UK / kætʃ, kɛtʃ /

A1
  • noun
  • Amount of something that has been caught
  • Trick or something trying to deceive
  • verb
  • To stop something flying and hold it
  • To stop something and not let it go, e.g. animals
  • To get sick or get a disease from someone else
  • To find someone to do something, a task
  • To get stuck on or in something
  • To be trapped so you can’t escape
  • To be able to understand what someone is saying

bunch

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US / bʌntʃ /

UK / bʌntʃ /

B1
  • noun
  • A group of things of the same kind
  • verb
  • To group people or things closely together
  • (Cloth) to gather/be gathered together in folds

number

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US / ˈnʌmbə(r) /

UK / ˈnʌmbɚ /

A1
  • noun
  • Symbols such as 1, 2, 56, 793
  • Particular song or dance performed during a show
  • Total quantity or amount of things
  • verb
  • To put numbers on things
  • To assign a sequence within a group, series, set
  • To claim to be part of a larger group, series, set

exurb

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US / ˈeksɜːb /

UK / /

A1
  • noun

own

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US / əʊn /

UK / on /

A1
  • adjecitve
  • Belong to oneself
  • determiner
  • Yours, his, hers, etc.; not belonging to another
  • pronoun
  • (Something) belong to myself
  • verb
  • To have something as your property

similar

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US / ˈsɪmələ(r) /

UK / ˈsɪməlɚ /

A1
  • adjecitve
  • Nearly the same; alike

tricky

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US / 'trɪkɪ /

UK / ˈtrɪki /

A2
  • adjecitve
  • Difficult, so needing skill to do or deal with
  • Likely to use tricks; dishonest or deceptive

hypothetically

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US / ˌhaɪpə'θetɪklɪ /

UK / ˌhaɪpə'θetɪklɪ /

B2
  • adverb
  • In a hypothetical way; as an example

hard

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US / hɑ:d /

UK / hɑː(r)d /

A1
  • adjecitve
  • Difficult to do; difficult to understand
  • (Of facts) not able to be misunderstood; clear
  • (Of alcohol) strong
  • Involving or requiring lots of work, effort, care
  • Being full of pain, trouble, and problems
  • Strong
  • (Of edge) clear; sharp
  • Difficult to bend, break or cut; solid
  • adverb
  • With lots of force, power, or impact

get

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US / ɡet /

UK / ɡɛt /

A1
  • verb
  • To become affected by illness or disease
  • To begin to feel or understand an emotion or idea
  • To send or bring someone or something home, etc.
  • To go somewhere to obtain something
  • To (cause to) do a particular thing
  • To obtain, receive or be given something
  • To currently have
  • To prepare for use
  • To understand something being said or read

placeholder

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US / ˈpleɪshəʊldə(r) /

UK / ˈplesˌholdɚ /

A1
  • noun
  • Symbol in a logical or mathematical expression that can be replaced by the name of any member of spe

roughly

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US / ˈrʌfli /

UK / ˈrʌflɪ /

B1
  • adverb
  • Approximately; (of numbers) about; around
  • In a manner that is violent or not careful
  • In an inexact, imprecise or violent way
  • In a basic, simple manner

each

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US / i:tʃ /

UK / itʃ /

A1
  • determiner
  • Every one of two or more things
  • pronoun
  • Per one person or thing

happen

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US / 'hæpən /

UK / ˈhæpən /

A1
  • verb
  • To take place or occur

ghost

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US / gəʊst /

UK / goʊst /

B1
  • noun
  • Bad effects, memories, and feelings from the past
  • Spirit of a dead person, appearing to the living
  • verb
  • To write a book on behalf of another person

method

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US / 'meθəd /

UK / ˈmɛθəd /

A2
  • noun
  • (Organized and planned) way of doing something

track

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US / træk /

UK / træk /

A2
  • noun
  • A circular course for running
  • Course or way someone takes, e.g. in education
  • Path in a field or a forest made by walkers
  • Often circular course laid out for car racing
  • One of multiple musical recordings on an album
  • Band surrounding the wheels of a tank
  • Metal lines that trains ride on
  • verb
  • To use marks to follow a wild animal
  • To move a certain way/follow a particular course
  • To record and examine the progress of something

down

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US / daʊn /

UK / daʊn /

A1
  • adjecitve
  • Being sad, sick, or unhappy
  • Not operating, working, or functioning as expected
  • adverb
  • In a sitting or lying position
  • Towards or on the ground, floor, or bottom
  • Written or copied onto a piece of paper or book
  • noun
  • A period of play in American Football
  • The soft, smooth hairs that cover a bird's body
  • preposition
  • Along something's path, course, or direction
  • Going from a higher position to a lower position
  • verb
  • To eat or drink very quickly and without stopping

force

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US / fɔ:s /

UK / fɔrs, fors /

A1
  • noun
  • Group of persons trained for military action; army
  • Pressure; attraction
  • The use of physical strength/violence to persuade
  • verb
  • To use physical strength or violence to persuade

gravitationally

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US / /

UK / /

A1
  • other
  • With respect to gravitation

task

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US / tɑ:sk /

UK / tæsk /

A2
  • noun
  • Big or small piece of work someone has to do
  • verb
  • To be given something to do, e.g. wash dishes

watch

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US / wɒtʃ /

UK / wɑtʃ /

A1
  • noun
  • Period of time someone is responsible for guarding
  • Device you wear on your wrist that shows the time
  • Official warning statement, e.g. of bad weather
  • verb
  • To keep in check, manage, or control something
  • To look at something for entertainment, e.g. TV
  • To guard a place or people; protect child, etc.
  • To look at carefully to work out what is happening
  • To protect and care for someone or something

again

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US / ə'ɡen /

UK / əˈɡɛn /

A1
  • adverb
  • One more time, once more

about

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US / ə'baʊt /

UK / əˈbaʊt /

A1
  • adverb
  • To be ready to; going to
  • Nearly; approximately; roughly
  • Near; next to; close to
  • In every direction; in the area of
  • preposition
  • Concerning or of (a topic)

absolute

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US / ˈæbsəlu:t /

UK / ˈæbsəˌlut /

A2
  • adjecitve
  • Complete; total; pure; not limited in any way
  • noun
  • Something that is complete, total, pure, certain

even

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US / 'i:vn /

UK / ˈivən /

A1
  • adjecitve
  • Being equal in influence, power, possibility etc.
  • Being divided equally or fairly
  • (Of teams/contest) with similar chances of success
  • Smooth, level, or regular
  • Can be divided by 2; ending in 2, 4, 6, 8, or 0
  • At a regular, equally steady manner
  • Remaining steady and unchanging
  • adverb
  • (When this is surprising) as well; too
  • (Used to compare two things/stress the difference)
  • verb
  • To make something level; to flatten
  • To make something equal

like

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US / laɪk /

UK / laɪk /

A1
  • adjecitve
  • Being equal in status or kind to something else
  • Similar; the same
  • adverb
  • For example
  • preposition
  • Used as a filler; used to ad emphasis
  • In a way similar to the way something is done
  • Such as; for example
  • verb
  • To want to
  • To find something pleasing; to prefer something

what

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US / wɒt /

UK / hwɑt, hwʌt, wɔt, wʌt,hwət, wət /

A1
  • pronoun
  • Thing or things that; the same kind as
  • Used to emphasize something you are about to say
  • adjecitve
  • Used to refer to a particular amount, or number
  • Used to place emphasis on a particular quality
  • adverb
  • To a certain degree
  • determiner
  • Question words used for asking for information
  • exclamation
  • Used to express excitement, shock, or surprise
  • Used to ask people to repeat something they said

that

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US / ðæt /

UK / ðæt, ðət /

A1
  • adjecitve
  • The person or thing being talked about
  • Used to identify something both the speakers know
  • adverb
  • Used to reinforce adjectives and adverbs
  • To such a degree
  • conjunction
  • Used to connect a noun clause
  • Used to introduce an adverbial clause
  • Used to introduce a noun clause
  • determiner
  • Used as a noun to refer to something
  • pronoun
  • Referring an object far away
  • Used to refer to the relative pronoun ‘which’

ahem

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US / ə'hem /

UK / əˈhɛm /

A1
  • exclamation
  • Sound to clear the throat to get attention

despite

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US / dɪˈspaɪt /

UK / dɪˈspaɪt /

A2
  • preposition
  • Without being affected by something; in spite of

encase

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US / ɪnˈkeɪs /

UK / ɛnˈkes /

C2
  • verb
  • (Of hard thing) to surround or totally envelop

fun

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US / fʌn /

UK / fʌn /

A1
  • adjecitve
  • Amusing and enjoyable
  • noun
  • Enjoyable or amusing quality or feeling

baby

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US / ˈbeɪbi /

UK / ˈbeɪbi /

A2
  • adjecitve
  • Small in size; smaller than usual
  • noun
  • A very young child, who cannot yet speak
  • verb
  • To treat someone as if they were newly born

ride

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US / raɪd /

UK / raɪd /

A1
  • noun
  • Machine at an amusement park for riding on for fun
  • Trip on a bicycle or a horse
  • verb
  • To travel in a particular vehicle as a passenger
  • To sit on and control a horse or vehicle

right

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US / raɪt /

UK / raɪt /

A1
  • adjecitve
  • Correct or true
  • The south side of you looking at the rising sun
  • adverb
  • Exactly in a place or time
  • Being appropriate for a particular event
  • In a straight or direct manner
  • noun
  • Something you are legally or morally allowed to do
  • Ideal of what is just and good
  • Political view based on conservatism
  • verb
  • To fix something previously wrong or unjust
  • To make upright, as a boat that has turned over

thirty

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US / 'θɜ:tɪ /

UK / ˈθə:ti /

A1
  • number
  • 30

depend

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US / dɪˈpend /

UK / dɪˈpend /

B1
  • verb
  • Be controlled or determined by (someone/something)

difficult

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US / 'dɪfɪkəlt /

UK / ˈdɪfɪˌkʌlt, -kəlt /

A1
  • adjecitve
  • Hard; not easy; you need to work hard to do it

capability

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US / ˌkeɪpəˈbɪləti /

UK / ˌkeɪpə'bɪləti /

B1
  • noun
  • Means, ability, or potential to do something

kicking

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US / ˈkɪkɪŋ /

UK / ˈkɪkɪŋ /

A2
  • verb
  • To hit or move something with the foot

jury

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US / ˈdʒʊəri /

UK / ˈdʒʊri /

B1
  • noun
  • 12 citizens who decide if someone is guilty or not

question

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US / 'kwestʃən /

UK / ˈkwɛstʃən /

A1
  • noun
  • Issue or problems you are dealing with
  • What you ask about; issue
  • verb
  • To ask for or try to get information
  • To have or express concerns or uncertainty

simulation

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US / ˌsɪmjuˈleɪʃn /

UK / ˌsɪmjəˈleʃən /

B1
  • noun
  • A copying method to study the real world

cold

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US / kəʊld /

UK / kold /

A1
  • adjecitve
  • Having a very low temperature
  • Being unfriendly or lacking emotion
  • noun
  • Illness of sneezing, coughing, and a sore throat

astronomer

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US / əˈstrɒnəmə(r) /

UK / əˈstrɑ:nəmə(r) /

B2
  • noun
  • Scientist studying stars and other bodies in space

fact

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US / fækt /

UK / fækt /

A1
  • noun
  • Something that is known or proved to be true

few

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US / fju: /

UK / fju /

A1
  • pronoun
  • Not many, a small number

earth

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US / ɜ:θ /

UK / ɚθ /

A1
  • noun
  • Wire connecting an electrical device to the ground
  • The planet we live on
  • Soil in which we grow plants

messy

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US / 'mesɪ /

UK / ˈmɛsi /

A2
  • adjecitve
  • Being complex or difficult to fix
  • Being untidy or dirty

much

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US / mʌtʃ /

UK / mʌtʃ /

A1
  • adjecitve
  • Very; to a high level or degree
  • adverb
  • A lot; large amount; a high degree of
  • Nearly; basically
  • On many occasions; often
  • noun
  • A large amount; a great quantity

strong

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US / strɒŋ /

UK / strɔŋ /

A1
  • adjecitve
  • (Of tea or beer) dark or thick
  • Having big muscles; physically powerful

system

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US / 'sɪstəm /

UK / ˈsɪstəm /

A1
  • adjecitve
  • Working in an organized, logical way
  • noun
  • Set of organized, planned ideas that work together

computer

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US / kəmˈpju:tə(r) /

UK / kəmˈpjutɚ /

A1
  • noun
  • Machine for storing data, accessing the internet

mass

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US / mæs /

UK / mæs /

B1
  • noun
  • Religious ceremony in some Christian churches
  • Large amount or number of something
  • Main or largest part of something
  • Large number of people considered as a whole
  • Amount of matter that an object has
  • verb
  • To gather people or things into a large group

math

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US / mæθ /

UK / mæθ /

A2
  • noun
  • Study or science of numbers and shapes

light

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US / laɪt /

UK / laɪt /

A1
  • adjecitve
  • Being bright making it easy to see; not dark
  • Being pale and lacking darkness of color
  • Not heavy; weighing only a little
  • adverb
  • Carrying few bags when traveling
  • noun
  • A source of energy that makes a room or area bright
  • Way in which something or someone is understood
  • verb
  • To cause something to burn; put a burning match to
  • To provide a way to see ahead

those

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US / ðəʊz /

UK / ðoz /

A1
  • determiner
  • The people or things we are talking about
  • pronoun
  • The objects far from the speaker

grow

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US / ɡrəʊ /

UK / ɡro /

A1
  • verb
  • To get bigger and more mature; make plants do this
  • To improve; to develop better skills over time
  • To develop and become bigger or taller over time

since

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US / sɪns /

UK / sɪns /

A1
  • adverb
  • At a point before the present time
  • conjunction
  • For this reason; because
  • preposition
  • From the time in the past that

specifically

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US / spəˈsɪfɪkli /

UK / spəˈsɪfɪkli /

A2
  • adverb
  • As regards a particular thing; closely related to
  • In particular

start

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US / stɑ:t /

UK / stɑrt /

A1
  • noun
  • First time or place that a thing exists; beginning
  • First opportunity to achieve something, e.g. a job
  • Sudden action or movement because you are scared
  • other
  • Beginning of something in place or time
  • verb
  • To do, be or happen for the first time; begin
  • To turn something on

well

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US / wel /

UK / wɛl /

A1
  • adjecitve
  • Being in a fortunate, good condition or state
  • Healthy and in good condition
  • adverb
  • In an acceptable, proper, or successful manner
  • In a complete, total, or full manner
  • A great and considerable degree
  • In a successful way, in a good or satisfactory way
  • exclamation
  • Used to begin or continue a particular statement
  • Used to show you want to start saying something
  • Used to express that you are waiting for a reply
  • You say this to change the topic of a conversation
  • Used to indicate you are making a final remark
  • noun
  • Long deep hole in the ground to get water
  • verb
  • To cause your eyes to fill with tears

old

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US / əʊld /

UK / old /

A1
  • adjecitve
  • Having existed for a long time, not young or new
  • Age of a person since birth

prove

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US / pru:v /

UK / pruv /

A2
  • verb
  • To demonstrate truth by providing evidence

account

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US / ə'kaʊnt /

UK / əˈkaʊnt /

A1
  • noun
  • An advantage
  • Arrangement with a bank to keep your money for you
  • An invoice for things bought
  • Arrangement whereby you can use online services
  • A description, often written, of events; report

evidence

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US / 'evɪdəns /

UK / ˈɛvɪdəns /

A1
  • noun
  • Factual proof that helps to establish the truth

pretty

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US / 'prɪtɪ /

UK / ˈprɪti /

A1
  • adjecitve
  • Being attractive to the eye in a simple way
  • adverb
  • Very; to a great degree

observation

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US / ˌɒbzəˈveɪʃn /

UK / ˌɑbzɚˈveʃən /

B1
  • noun
  • Remark or comment on something you noticed
  • Practice of performing actions required by rules

possible

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US / ˈpɒsəbl /

UK / ˈpɑsəbəl /

A1
  • adjecitve
  • Being able or appropriate for a task or purpose
  • Having a chance of happening, or being true

solar

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US / 'səʊlə(r) /

UK / ˈsolɚ /

B1
  • adjecitve
  • Concerning the sun, or its heat

direction

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US / də'rekʃn /

UK / dɪˈrɛkʃən, daɪ- /

A2
  • noun
  • When someone tells people what to do
  • Describes the way you are going, e.g. North

huge

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US / hju:dʒ /

UK / hjudʒ /

A2
  • adjecitve
  • Very very large

nowhere

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US / 'nəʊweə(r) /

UK / ˈnoˌhwɛr, -ˌwɛr /

A2
  • adverb
  • Not in or at any place; no place

move

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US / mu:v /

UK / muv /

A1
  • noun
  • Act of moving a playing piece in chess, etc.
  • An action; doing something
  • Step taken to achieve a goal
  • verb
  • To cause someone to have certain emotions
  • To cause something to change to a different place
  • To change where people live or a business operates
  • To take action to do or achieve something

technique

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US / tekˈni:k /

UK / tɛkˈnik /

A2
  • noun
  • Way of doing by using special knowledge or skill

way

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US / weɪ /

UK / we /

A1
  • adverb
  • Used to emphasize the amount of something
  • noun
  • Particular aspect of something being thought about
  • One of various choices that could be made
  • Particular existing condition or state
  • (Often long) distance or length of time
  • How something is done
  • Route to go to a place
  • Small street
  • Usual behavior, emotions or habits of someone

their

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US / ðɛː /

UK / ðer /

A1
  • determiner
  • Belonging to them

belt

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US / belt /

UK / bɛlt /

A2
  • noun
  • Band of material worn around a person's waist
  • Area with a lot of a particular feature e.g. corn
  • verb
  • To leave somewhere quickly (UK use)
  • To put a belt around something or someone

all

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US / ɔ:l /

UK / ɔl /

A1
  • adverb
  • Completely; totally
  • determiner
  • Being every one of something
  • pronoun
  • 100% of something; the complete amount

chance

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US / tʃɑ:ns /

UK / tʃæns /

A1
  • adjecitve
  • Happening by luck; not planned
  • Taking a risk to try something
  • noun
  • The way something happens without planning
  • An opportunity; favorable circumstances, situation
  • The possibility that something will happen
  • verb
  • To occur just through luck; happen
  • To take a risk to try something

its

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US / ɪts /

UK / ɪts /

A1
  • adjecitve
  • Referring to or belonging to ‘it’
  • determiner
  • Of something; belonging or related to something
  • other
  • Possessive form of “it”

empty

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US / 'emptɪ /

UK / ˈɛmpti /

A1
  • adjecitve
  • Containing nothing; with no contents
  • Without emotions, feelings, meaning or force
  • noun
  • Item, e.g. a bottle, whose contents have been used
  • verb
  • To remove the contents from something

strange

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US / streɪndʒ /

UK / strendʒ /

A1
  • adjecitve
  • Unusual or odd; surprising because unexpected

super

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US / ˈsu:pə(r) /

UK / ˈsupɚ /

A2
  • adjecitve
  • Of the highest quality; great; marvelous

both

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US / bəuθ /

UK / boθ /

A1
  • determiner
  • Used to refer to two things at the same time
  • pronoun
  • Used to refer to two things at the same time

change

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US / tʃeɪndʒ /

UK / tʃendʒ /

A1
  • noun
  • Exchange of one set of clothes for another
  • Money in the form of coins instead of paper
  • Money returned after giving too much
  • Act of making or becoming something else
  • verb
  • To exchange one set of clothes for another
  • To exchange one kind of money for another
  • To replace something with another thing
  • To make or become something else
  • To go from one train, bus, etc. and go to another

humongous

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US / hju:ˈmʌŋgəs /

UK / hjuˈmɑŋɡəs, -ˈmʌŋ- /

A1
  • adjecitve
  • Very large

space

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US / speɪs /

UK / spes /

A1
  • noun
  • Empty area kept for a specific reason, like a car
  • Empty area with nothing in it
  • Area in the sky where the stars are
  • Area between written words on a page
  • verb
  • To make a certain distance or time between

someday

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US / 'sʌmdeɪ /

UK / 'sʌmˌdeɪ /

C2
  • adverb
  • At some unspecified time in the future

bit

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US / bɪt /

UK / bɪt /

A1
  • noun
  • Device put in a horse's mouth to control it
  • Small piece of something
  • verb
  • (E.g. of fish) to take bait and be caught

kilometre

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US / ˈkɪləmi:tə(r) /

UK / ˈkɪləmiːtər /

A1
  • noun
  • A metric unit of length equal to 1000 metres

look

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US / lʊk /

UK / lʊk /

A1
  • noun
  • Person's beauty or physical attractiveness
  • Particular style of dress, clothes, or appearance
  • The way someone, something appears to be
  • Act of searching for or examining something
  • verb
  • To appear to be; seem

scishow

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US / /

UK / /

A1

viewer

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US / ˈvju:ə(r) /

UK / ˈvjuɚ /

A2
  • noun
  • Special machine to look at pictures
  • Someone who watches, e.g. television

thank

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US / θæŋk /

UK / θæŋk /

A1
  • verb
  • To tell someone you are grateful to them

announce

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US / əˈnaʊns /

UK / əˈnaʊns /

A2
  • verb
  • To make a public statement about a plan, decision

between

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US / bɪˈtwi:n /

UK / bɪˈtwin /

A1
  • preposition
  • From one person, thing, or place, to another
  • In the space that separates two objects
  • Among two or more people who share something

background

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US / ˈbækgraʊnd /

UK / ˈbækˌɡraʊnd /

A2
  • noun
  • Images, color, or information behind the main one
  • Someone's personal work and educational history
  • A position not as important as the main event
  • Past events that influence things in the present

tilt

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US / tɪlt /

UK / tɪlt /

B2
  • noun
  • Position in which one side is above the other
  • verb
  • To change to a newly preferred idea or opinion
  • To move something away from the upright
  • To influence (public opinion) in a certain way

very

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US / 'verɪ /

UK / ˈvɛri /

A1
  • adjecitve
  • Concerning a large degree or amount
  • adverb
  • A lot; much; many
  • Used to stress or emphasize a noun

they

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US / ðeɪ /

UK / ðe /

A1
  • pronoun
  • Two or more people, animals, or things

center

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US / 'sentə /

UK / ˈsɛntɚ /

A1
  • noun
  • Community place people go health or social reasons
  • Place in the middle of something
  • Person or thing that is attracting attention
  • verb
  • To direct focus toward something

exist

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US / ɪɡ'zɪst /

UK / ɪɡˈzɪst /

A1
  • verb
  • To be present, alive or real

hiding

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US / ˈhaɪdɪŋ /

UK / ˈhaɪdɪŋ /

A1
  • noun
  • A severe beating
  • verb
  • To go to, or put a thing where it can't be found

end

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US / end /

UK / ɛnd /

A1
  • noun
  • The point where a process or activity stops
  • A point that marks the limit of something; finish
  • Goal or desired result
  • The tip, edge or limit of something
  • verb
  • To be the last part of something

ice

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US / aɪs /

UK / aɪs /

A1
  • noun
  • Frozen gas or liquid, esp. water
  • Sweet food made of frozen cream, or juices
  • verb
  • To make something cold by putting on frozen water
  • To spread a sweet and creamy substance on a cake

transit

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US / ˈtrænzɪt /

UK / ˈtrænsɪt, -zɪt /

B1
  • adjecitve
  • Concerning a transport system in a city
  • noun
  • System of transportation, often in a city
  • Process of changing planes at airports
  • verb
  • To change from one airplane to another at airports

yourself

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US / jɔ:ˈself /

UK / jʊrˈsɛlf, jɔr-, jor-, jə- /

A1
  • pronoun
  • Reflexive form of 'you', used for an emphasis

suburb

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US / ˈsʌbɜ:b /

UK / ˈsʌbɜ:rb /

B1
  • noun
  • Residential area on the outskirts of a city

amount

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US / ə'maʊnt /

UK / əˈmaʊnt /

A1
  • noun
  • Quantity of something
  • verb
  • To add up to a certain figure

tug

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US / tʌg /

UK / tʌɡ /

B1
  • noun
  • Pull at something that is hard or sudden
  • verb
  • To pull (something) hard or suddenly

centauri

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US / sɛnˈtɑri /

UK / /

A1
  • adjective
  • Used with preceding Greek letter or numeral to designate a star in the constellation Centaurus.
  • proper noun
  • A large southern constellation (the Centaur). It lies in the Milky Way and contains the stars Alpha

before

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US / bɪˈfɔ:(r) /

UK / bɪˈfɔr,-ˈfor /

A1
  • adverb
  • At a time earlier than the present; previously
  • conjunction
  • In advance of something happening
  • preposition
  • In front of someone or something

middle

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US / 'mɪdl /

UK / ˈmidl /

A1
  • adjecitve
  • Equal distance from extremes
  • noun
  • Place that is halfway between two things

extra

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US / 'ekstrə /

UK / 'ekstrə /

A2
  • adjecitve
  • More than necessary; additional
  • noun
  • Items more than you need; additional items
  • Person who has a small part in a movie
  • Special version of a newspaper

astronomical

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US / ˌæstrəˈnɒmɪkl /

UK / ˌæstrəˈnɑmɪkəl /

B2
  • adjecitve
  • Extremely large or high
  • Of the study of stars and other bodies in space

merely

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US / ˈmiəli /

UK / ˈmɪrli /

B1
  • adverb
  • Only, simply, or nothing more than

for

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US / fə(r) /

UK / fɔr,fə /

A1
  • preposition
  • Used to show the purpose, or need of something

have

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US / həv /

UK / hæv /

A1
  • verb
  • To drink, smoke, eat or use something
  • To experience the effects of something
  • To organize an event, or join in an activity
  • To own, possess, or hold something
  • To cause to happen or produce a particular effect

short

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US / ʃɔ:t /

UK / ʃɔrt /

A1
  • adverb
  • Less than what is needed
  • Suddenly stopping what you are saying or doing
  • verb
  • (Of electric circuit) to spark because faulty
  • adjecitve
  • Measuring a small distance
  • Happening for a small amount of time
  • Unfriendly or rude

flash

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US / flæʃ /

UK / flæʃ /

B1
  • noun
  • Sudden and brief appearance of something
  • Light used by a camera to brighten the area
  • Sudden feeling, idea or occurrence
  • Publicly exposing your genitals to others
  • Sudden bright light
  • Showing something very quickly and briefly
  • Light used in the dark, powered by batteries
  • verb
  • To appear suddenly and briefly
  • To publicly expose your genitals to others
  • To shine brightly very suddenly and briefly
  • To show something very quickly and briefly

time

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US / taɪm /

UK / taɪm /

A1
  • noun
  • Speed at which music is played; tempo
  • Point as shown on a clock, e.g. 3 p.m
  • Number of hours, minutes needed to do something
  • Occasion when something happens
  • Period or occasion that something occurred
  • Period in history or the past
  • Something measured in minutes, hours, days, etc.
  • How long an event takes; duration
  • verb
  • To check speed at which music is performed
  • To choose a specific moment to do something
  • To measure how long an event takes, e.g. a race
  • To schedule something to occur at a specific moment

outer

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US / ˈaʊtə(r) /

UK / ˈaʊtɚ /

A1
  • adjecitve
  • Far away
  • Being farther away from the center
  • On or around something; away from the center

through

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US / θru: /

UK / θru /

A2
  • adjecitve
  • having finished using or doing something
  • adverb
  • From the beginning of something until the end
  • preposition
  • Over, in, across an entire thing or place
  • Allowing you to pass between, or to
  • By a particular way or process; by the use of

accord

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US / ə'kɔ:d /

UK / əˈkɔ:rd /

B1
  • noun
  • Agreement or harmony
  • An agreement or treaty between countries
  • verb
  • To be in harmony or agreement; consent
  • To give (someone) the respect due to them

solid

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US / 'sɒlɪd /

UK / ˈsɑlɪd /

A2
  • adjecitve
  • Being able to be trusted; reliable
  • Substance that is hard or of fixed shape
  • Being well made and expected to last long
  • Having no space or emptiness inside
  • Being made entirely of one material or substance
  • noun
  • Something firm or hard; not gas or liquid

premium

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US / ˈpri:miəm /

UK / ˈprimiəm /

B1
  • adjecitve
  • Having a higher than normal quality
  • noun
  • Money paid as a fee for insurance

wind

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US / wɪnd /

UK / wɪnd /

A1
  • adjecitve
  • (Musical instruments) that you blow into to play
  • noun
  • A current of air moving approximately horizontally, especially one strong enough to be felt
  • Something that has influence
  • verb
  • If a road, path, or river winds, it follows a route that turns repeatedly in different directions
  • To turn or cause something to turn
  • To twist around something

see

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US / si: /

UK / si /

A1
  • verb
  • To go on a date with someone
  • To predict whether something is, or will be true
  • To understand what someone says
  • To use your eyes to look at something
  • To visit a place often for sightseeing or pleasure
  • To visit or meet with someone
  • To find out by waiting or looking
  • To watch (a game, movie or TV show)

collapse

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US / kə'læps /

UK / kəˈlæps /

B1
  • verb
  • To fold (e.g. a stroller) down to make it smaller
  • To suddenly fall down or break apart into pieces
  • To fall down suddenly due to being ill or tired

blame

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US / bleɪm /

UK / blem /

A2
  • noun
  • Act of saying someone did something bad
  • verb
  • To say someone is responsible for something bad

just

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US / dʒʌst /

UK / dʒʌst /

A1
  • adjecitve
  • Proper or appropriate; as is deserved
  • Doing or being what is right or fair
  • Legally correct; having enough evidence
  • adverb
  • Almost; nearly
  • Exactly at the time of
  • Exactly (the same as, like)

talk

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US / tɔ:k /

UK / tɔk /

A1
  • noun
  • Style of speaking
  • Discussion between two countries
  • Giving information in front of people; lecture
  • Saying things or ideas to someone with words
  • verb
  • To make a formal speech about something
  • To say things or ideas to someone with words

after

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US / 'ɑ:ftə(r) /

UK / ˈæftɚ /

A1
  • adverb
  • Later than another time, or behind something
  • conjunction
  • Following something before
  • preposition
  • When an event happened or time has passed

dust

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US / dʌst /

UK / dʌst /

A2
  • noun
  • Fine dry powder that builds up on surfaces
  • verb
  • To apply a fine powder to, e.g. sugar to a cake
  • To wipe something to remove dirt

leftover

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US / ˈleftəʊvə(r) /

UK / ˈlɛftˌovɚ /

C2
  • adjecitve
  • (Of food) that you didn't eat at a meal

orbit

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US / 'ɔ:bɪt /

UK / ˈɔrbɪt /

B2
  • noun
  • Path an object takes as it circles another object
  • verb
  • To go around another object (often in space)

many

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US / 'menɪ /

UK / ˈmɛni /

A1
  • determiner
  • Used to refer a large number of things

pluto

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US / ˈpluːtəʊ /

UK / ˈpluːtoʊ /

A1
  • other
  • A small planet and the farthest known planet from the sun; it has the most elliptical orbit of all t
  • A cartoon character created by Walt Disney

with

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US / wɪð /

UK / wɪð, wɪθ /

A1
  • preposition
  • As an employee of a certain company
  • Against something or someone
  • By using something as a means
  • Due to; because of
  • Including
  • Possessing as a feature
  • Related to
  • (Of the manner/attitude by which you do something)
  • Used to express that people or things are together

interactive

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US / ˌɪntərˈæktɪv /

UK / ˌɪntɚˈæktɪv /

A2
  • adjecitve
  • Acting or influencing others

hear

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US / hɪə(r) /

UK / hɪr /

A1
  • verb
  • To be aware of sound; to perceive with the ear
  • To be told or find out information or facts
  • To consider or listen to a court case

team

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US / ti:m /

UK / tim /

A1
  • noun
  • Group of people working on a task together
  • Group of people playing a sport together

notice

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US / 'nəʊtɪs /

UK / ˈnotɪs /

A1
  • noun
  • Time by when you must leave, e.g. if you are fired
  • Paper with an announcement, e.g. pinned to a board
  • verb
  • To become aware by sight, touch, or hearing

thousand

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US / ˈθaʊznd /

UK / ˈθaʊzənd /

A1
  • number
  • Number 1,000

sun

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US / sʌn /

UK / sʌn /

A1
  • noun
  • Light and heat coming from a large star in the sky
  • Hot shining star the Earth moves around
  • verb
  • To lie in the sunshine and enjoy its warmth

will

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US / wɪl /

UK / wɪl /

A1
  • noun
  • Desire or choice of someone
  • Document saying who gets your money when you die
  • Strong desire to do something; determination
  • Desire to do something; strong wish to do
  • other
  • Used with verbs to express the future
  • verb
  • To leave property to someone after your death
  • To use mental effort to make something happen
  • Am (is, are) likely to do
  • To influence someone to do something
  • To make something happen by strongly wanting it

unlikely

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US / ʌnˈlaɪkli /

UK / ʌnˈlaɪkli /

A2
  • adjecitve
  • Not seeming suitable for a particular purpose
  • adverb
  • Not likely to happen; not likely to be the truth

certain

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US / ˈsə:tn /

UK / ˈsɚtn /

A1
  • adjecitve
  • Definite, fixed
  • Referring to an unspecified amount or quantity
  • Being sure about something; without doubt

day

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US / deɪ /

UK / de /

A1
  • noun
  • A period of 24 hours beginning at midnight
  • The period of time when it is light outside
  • Person's name

ever

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US / 'evə(r) /

UK / ˈɛvɚ /

A1
  • adverb
  • At any time; at all times in the future

explain

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US / ɪk'spleɪn /

UK / ɪkˈsplen /

A1
  • verb
  • To make clear or easy to understand by describing

skill

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US / skɪl /

UK / skɪl /

A2
  • noun
  • Ability to do something well

point

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US / pɔɪnt /

UK / pɔɪnt /

A1
  • noun
  • An item to be discussed
  • Small spot or dot
  • Fact or detail
  • Feature of something
  • The size of the text on a page or screen
  • A certain time or stage in a process
  • Certain position in time or space
  • Idea or fact you try to convince people about
  • Measurement of scores in a game, sport
  • Sharp end of something, e.g. a pen or pin
  • verb
  • To face a certain direction, e.g. north
  • To indicate something with your finger to others

speculative

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US / ˈspekjələtɪv /

UK / ˈspɛkjulətɪv, -ˌle- /

B2
  • adjecitve
  • Not based on sure knowledge; based on intuition

previous

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US / ˈpri:viəs /

UK / ˈpriviəs /

A2
  • adjecitve
  • Existing or happening before the present time

reason

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US / 'ri:zn /

UK / ˈrizən /

A1
  • noun
  • Ability to think about facts and form a judgment
  • Explanation for why something occurred or was done
  • verb
  • To think and make conclusions in a logical manner

plus

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US / plʌs /

UK / plʌs /

A2
  • noun
  • A benefit or advantage
  • preposition
  • In addition; add
  • In addition to; Indicates a number above
  • Having a value greater than zero

too

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US / tu: /

UK / tu /

A1
  • adverb
  • In addition, also; with emphasis
  • Say that something is more than you want

geometry

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US / dʒiˈɒmətri /

UK / dʒiˈɑ:mətri /

B2
  • noun
  • Mathematical study of shapes, surfaces, and space
  • Mathematical shape of something

million

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US / ˈmɪljən /

UK / ˈmɪljən /

A1
  • number
  • 1,000,000

inside

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US / ˌɪn'saɪd /

UK / ɪnˈsaɪd, ˈɪnˌsaɪd /

A2
  • adjecitve
  • Being in something
  • Being in a building
  • adverb
  • Into a house; indoors
  • noun
  • Inner part or surface of something

gravity

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US / ˈgrævəti /

UK / ˈɡrævɪti /

B1
  • noun
  • (Of a situation) extreme seriousness
  • Force making things fall towards the ground

publish

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US / 'pʌblɪʃ /

UK / ˈpʌblɪʃ /

A2
  • verb
  • To prepare and make available a book magazine etc.
  • To release information to the general public

while

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US / waɪl /

UK / hwaɪl, waɪl /

A1
  • conjunction
  • In spite of the fact that; although
  • During the time that; at the same time
  • noun
  • Short amount of time

stem

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US / stem /

UK / stɛm /

B1
  • noun
  • Long thin central part of a plant, bearing leaves
  • Long thin part supporting something e.g. a light
  • Main part of a word, e.g. 'use' in 'useful'
  • verb
  • To remove the stem of a flower or fruit
  • To start from or be the origin of
  • To stop something bad from spreading or developing

either

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US / ˈaɪðə(r) /

UK / ˈiðɚ, ˈaɪðɚ /

A1
  • adjecitve
  • One of two (used when there is a choice of two)
  • adverb
  • (After negative statements) likewise, in addition
  • conjunction
  • Used as the first of two connected things
  • determiner
  • Used as the first of two connected things
  • pronoun
  • The one or the other

available

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US / əˈveɪləbl /

UK / əˈveləbəl /

A1
  • adjecitve
  • Present and able to be used
  • Able to be used at a scheduled time

genuine

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US / ˈdʒenjuɪn /

UK / ˈdʒɛnjuɪn /

A2
  • adjecitve
  • Being real, actual, and not false or artificial
  • Being sincere in your actions or character

stuck

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US / stʌk /

UK / stʌk /

A2
  • adjecitve
  • Not able to move
  • verb
  • To push a sharp or pointed object into something
  • To join together using glue or paste
  • To remain in one place or position for a long time

actually

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US / ˈæktʃuəli /

UK / ˈæktʃuəli /

A1
  • adverb
  • Used to add new (often different) information

android

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US / 'ændrɔɪd /

UK / ˈænˌdrɔɪd /

B1
  • noun
  • Robot that looks or seems human
  • Trademarked computer operating system

use

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US / ju:s /

UK / ju:s /

A1
  • noun
  • Ability to employ something
  • Need to enable it to work
  • Permission to do something with something
  • Act of spending money
  • Operation of a machine for its function
  • verb
  • To have; to eat, drink, consume etc.
  • To need to operate or work
  • To operate a machine, e.g. a computer
  • To treat a person badly
  • To do something with, for a task or purpose

exactly

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US / ɪgˈzæktli /

UK / ɪɡˈzæktli /

A1
  • adverb
  • No more and no less than; precisely

massive

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US / ˈmæsɪv /

UK / ˈmæsɪv /

B1
  • adjecitve
  • Very big; large; too big

science

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US / 'saɪəns /

UK / ˈsaɪəns /

A2
  • noun
  • Study of the physical world, based on facts

neptune

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US / ˈneptju:n /

UK / ˈnɛpˌtun, -ˌtjun /

A1
  • other
  • A giant planet with a ring of ice particles; the th planet from the sun is the most remote of the ga

gravitational

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US / ˌgrævɪˈteɪʃənl /

UK / ˌɡrævɪˈteɪʃənl /

C1
  • adjecitve
  • Concerning the force of gravity

visit

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US / ˈvɪzɪt /

UK / ˈvɪzɪt /

A1
  • noun
  • Trip to a place for a time, usually for a reason
  • verb
  • To go to a place for a time, usually for a reason

story

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US / 'stɔ:rɪ /

UK / ˈstɔri, ˈstori /

A1
  • noun
  • One of many floors or levels in a building
  • Account or description of how something happened

weird

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US / wɪəd /

UK / wɪrd /

B1
  • adjecitve
  • Odd or unusual; surprising; strange

currently

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US / ˈkʌrəntli /

UK / ˈkʌrənt(ə)li /

A2
  • adverb
  • Happening or being in the present time

expect

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US / ɪk'spekt /

UK / ɪkˈspɛkt /

A1
  • verb
  • To believe something is probably going to happen

internet

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US / ˈɪn.tə.net /

UK / ˋɪntɚ͵nɛt /

A1
  • noun
  • Worldwide computer network system

online

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US / ˌɒnˈlaɪn /

UK / ˌɑ:nˈlaɪn /

B1
  • adjecitve
  • Connected to the internet

video

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US / 'vɪdɪəʊ /

UK / ˈvɪdiˌo /

A2
  • adjecitve
  • Of a moving film, with sound
  • noun
  • Recording capturing action with sound
  • verb
  • To make a moving film of, with sound

want

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US / wɔnt /

UK / wɑnt, wɔnt /

A1
  • noun
  • Something you desire or wish for
  • State or condition of poverty
  • verb
  • To desire or wish for something; hope for a thing

likelihood

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US / ˈlaɪklihʊd /

UK / ˈlaɪkliˌhʊd /

B1
  • noun
  • Chance that something might happen

now

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US / naʊ /

UK / naʊ /

A1
  • adverb
  • At the present time or moment
  • Right away or in the next possible moment
  • Used to refer to something that just happened
  • Time between the present and a moment in the past
  • conjunction
  • Resulting from or because of something

planet

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US / 'plænɪt /

UK / ˈplænɪt /

A2
  • noun
  • One of the bodies that orbit the sun

could

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US / kəd /

UK / kʊd /

A1
  • other
  • Past form of 'can' to mean have ability
  • Used to ask for something politely, or to offer

dwarf

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US / dwɔ:f /

UK / dwɔrf /

B2
  • noun
  • Person of short stature, due to medical condition

know

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US / nəʊ /

UK / noʊ /

A1
  • verb
  • To be familiar with a person or place, thing
  • To feel sure or be convinced about something
  • To discover or be aware of something
  • To be able to distinguish
  • To have knowledge of things

starlight

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US / ˈstɑːlaɪt /

UK / ˈstɑːrlaɪt /

A1
  • noun
  • Light of the stars

bummer

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US / ˈbʌmə(r) /

UK / ˈbʌmɚ /

C2
  • noun
  • Irritating or disappointing experience

calculate

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US / 'kælkjʊleɪt /

UK / ˈkælkjəˌlet /

B2
  • verb
  • To find an answer using mathematics
  • To make an educated guess about something

away

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US / ə'weɪ /

UK / əˈwe /

A1
  • adjecitve
  • Not present
  • adverb
  • Disappear completely
  • Doing something with a lot of energy
  • Not here; far from here; in a different direction
  • To a different area, location

model

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US / ˈmɒdl /

UK / ˈmɑ:dl /

A2
  • adjecitve
  • Being an excellent example of
  • noun
  • Person who wears fashion to show it to the public
  • A small scale copy of a full original
  • verb
  • To wear and display clothes at a fashion show
  • To make a small scale copy of a full original

wood

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US / wʊd /

UK / wʊd /

A2
  • adjecitve
  • Living or existing in the woods
  • Made from the material from trees
  • noun
  • Person's name
  • Land covered with trees, smaller than a forest
  • Cut tree used for making fires or building things
  • verb
  • To plant an area of land with trees

unit

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US / ˈju:nɪt /

UK / ˈjunɪt /

B2
  • noun
  • One apartment in a building
  • Group of people, e.g. soldiers, that work together
  • A chapter of a textbook
  • A standard of measurement of something
  • Single item made by a company

clear

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US / klɪə(r) /

UK / klɪr /

A1
  • adjecitve
  • Empty; without anything in it or on it
  • Being certain and without doubt
  • Being without any streaks, spots, or cracks
  • Easy to understand; well-explained; obvious
  • adverb
  • Completely; entirely; through the whole of
  • Away from; free from
  • verb
  • To recover from or remove a problem
  • To get rid of the entire contents of
  • To give permission for something to happen
  • To make a place or surface empty by removing
  • To prove that someone is not guilty or to blame

hand

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US / hænd /

UK / hænd /

A1
  • noun
  • Cards given to a player in a card game
  • Piece of a clock that points to the time
  • Someone who performs physical tasks or work
  • Body part at the end of a person's arm
  • Help for someone performing a particular action
  • Condition of having power or influence
  • Member of the crew of a ship
  • verb
  • To give something to someone personally

plural

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US / ˈpluərəl /

UK / ˈplʊrəl /

B1
  • adjecitve
  • Being more than one person or thing

next

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US / nekst /

UK / nɛkst /

A1
  • adverb
  • The one that follows another in time or order
  • At a time or place directly after the present one
  • noun
  • The one that follows after
  • adjecitve
  • Immediately after the previous one
  • First occurrence after the present one

quickly

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US / ˈkwɪkli /

UK / ˈkwɪklɪ /

A1
  • adverb
  • Without taking a lot of time; fast

connection

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US / kəˈnekʃn /

UK / kəˈnɛkʃən /

A2
  • noun
  • Something that joins things together; being joined
  • Person you know who can help you in some way
  • Changing vehicles when traveling

exile

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US / 'eksaɪl /

UK / ˈɛɡˌzaɪl, ˈɛkˌsaɪl /

B2
  • noun
  • State of being forced to leave your country
  • One forced to leave their home and live elsewhere
  • verb
  • One forced to leave their home and live elsewhere

completely

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US / kəmˈpli:tli /

UK / kəmˈpliːtli /

A1
  • adverb
  • In every way or as much as possible

front

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US / frʌnt /

UK / frʌnt /

A1
  • adjecitve
  • Opposite of back; the forward part of an object
  • noun
  • Behavior not showing a person's true feelings
  • Area where fighting in a war is happening
  • Place where air of different temperatures meets
  • verb
  • To have the forward part facing something
  • To lead a group of people, usually a band

normally

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US / ˈnɔ:məli /

UK / ˈnɔːrməli /

B1
  • adverb
  • In the manner that is usual or ordinary

lawn

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US / lɔ:n /

UK / lɔn /

B1
  • noun
  • Fine cotton cloth, either plain or printed
  • Ground on which grass grows, as in a garden

only

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US / ˈəunli /

UK / ˈonli /

A1
  • adverb
  • Just one; just that amount or thing; not more than
  • Not very important or serious
  • Just that type of thing, person
  • Short time ago; not before a certain time
  • conjunction
  • Except; but

nine

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US / naɪn /

UK / naɪn /

A1
  • number
  • 9

put

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US / pʊt /

UK / pʊt /

A1
  • phrasal verb
  • to make a light stop shining by pressing or moving a switch
  • verb
  • To move or place a thing in a particular position
  • To rate something in importance or value
  • To write or say something in a certain manner

ten

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US / ten /

UK / tɛn /

A1
  • number
  • 10

reclassify

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US / ˌriːˈklæsɪfaɪ /

UK / ˌriːˈklæsɪfaɪ /

B2
  • verb
  • To re-arrange things into groups of similar items

visual

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US / 'vɪʒʊəl /

UK / ˈvɪʒuəl /

A2
  • adjecitve
  • Of or relating to vision
  • noun
  • Pictures/images used to help audience understand

sometimes

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US / ˈsʌmtaɪmz /

UK / ˈsʌmˌtaɪmz /

A1
  • adverb
  • Only at certain times; occasionally

call

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US / kɔ:l /

UK / kɔl /

A1
  • noun
  • A order or request for action
  • The sound an animal makes, often when in danger
  • A correct prediction, e.g. a decision in a game
  • A short visit to a place or person
  • A decision by a referee or umpire in a game
  • verb
  • To make a request or order for action
  • (Animal) to make sounds to warn of danger
  • To announce the date of an election
  • To make a judgment about something
  • To give someone or something a name
  • To guess in advance the result or outcome
  • To visit a place or person for a short time
  • To phone someone
  • To speak, announce or shout in a loud voice

far

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US / fɑ:(r) /

UK / fɑr /

A1
  • adjecitve
  • A long way away
  • Being a long way away
  • adverb
  • To a large degree or extent

icy

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US / 'aɪsɪ /

UK / ˈaɪsi /

A2
  • adjecitve
  • Very cold; with frozen water on it, or in it
  • Not very friendly or kind

hide

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US / haɪd /

UK / haɪd /

A1
  • noun
  • The skin of an animal used for making leather
  • verb
  • To go to, or put a thing where it can't be found

proof

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US / pru:f /

UK / pruf /

A2
  • noun
  • Act of showing that something exists or is true
  • Version of a document to be checked for errors
  • Special coating that protects something
  • Something which shows that something else is true
  • verb
  • To read a written work to check for mistakes
  • To protect by painting on a special coating

picture

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US / 'pɪktʃə(r) /

UK / ˈpɪktʃɚ /

A1
  • noun
  • General situation or state of being
  • Mental image of what something is or looks like
  • Movie; film
  • Painting, drawing or photograph on paper or screen
  • verb
  • To understand or imagine something
  • To imagine someone or something in an image

where

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US / hwɛə /

UK / hwɛr, wɛr /

A1
  • conjunction
  • At or in the place which
  • In whatever place
  • pronoun
  • Word you use to ask the location of something

survey

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US / 'sɜ:veɪ /

UK / ˈsɜː(r)veɪ /

A2
  • noun
  • Broad view or general description of something
  • Act of measuring land or property to make a map
  • Set of questions used to ask people about a topic
  • verb
  • To offer a broad view or general description
  • To measure an area of land to make a map of it
  • To ask people a question about a particular topic

uranus

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US / ˈjʊərənəs /

UK / ˈjʊrənəs, jʊˈrenəs /

A1
  • other
  • A giant planet with a ring of ice particles; the th planet from the sun has a blue-green color and m

trial

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US / ˈtraɪəl /

UK / ˈtraɪəl, traɪl /

A2
  • adjecitve
  • Being made or done as a test or experiment
  • noun
  • Hearing and judgment of a case in court
  • Act or process of testing or experimenting
  • verb
  • To be made or done as a test or experiment

and

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US / ənd /

UK / ənd, ən,ænd /

A1
  • conjunction
  • Used to refer to two or more things
  • Plus; in addition; on top of that
  • Used to introduce an action that follows another

base

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US / beɪs /

UK / bes /

A2
  • noun
  • Place military personnel live, train, and operate
  • Bottom part of an object that touches a surface
  • Unit of counting, e.g. 10 for counting
  • Most important idea or ingredient to add others
  • Origin or start from which something came
  • Main place where an organization or a person works
  • verb
  • To use as the starting point or origin for
  • To have as the main location for (company, etc.)

back

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US / bæk /

UK / bæk /

A1
  • adjecitve
  • Farthest from the front e.g. in a classroom
  • adverb
  • Have returned to a place you were before
  • noun
  • The part of a chair that the upper body leans upon
  • Location at the rear of something
  • The reverse of side something
  • Area on the rear of your body
  • verb
  • To bet money on something
  • To go backwards in a car
  • To support and encourage someone or some cause

hope

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US / həʊp /

UK / hop /

A1
  • noun
  • When you wish something will happen; what you wish
  • verb
  • To expect and want something to happen

lot

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US / lɒt /

UK / lɑt /

A1
  • noun
  • What happens to a person in life from chance; fate
  • A group of people seen together
  • Item for sale at an auction
  • Small area of land used for a purpose e.g. parking

advantage

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US / əd'vɑ:ntɪdʒ /

UK / ædˈvæntɪdʒ /

A2
  • noun
  • Thing making the chance of success higher
  • A positive point about something

cloud

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US / klaʊd /

UK / klaʊd /

A1
  • noun
  • A mass of smoke or mist hanging in the air
  • verb
  • To confuse the mind/judgment of a person
  • (Of the sky) to get darker and fill with clouds
  • To make (glass, etc.) difficult to see through
  • To make an activity less pleasant or enjoyable
  • (Of person's face, etc.) to show worry/anger

description

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US / dɪˈskrɪpʃn /

UK / dɪˈskrɪpʃən /

A2
  • noun
  • Explanation of what something is like, looks like

can

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US / kæn /

UK / kən,kæn /

A1
  • noun
  • A metal container for storing food
  • other
  • Able to; have the skill to; have the time to
  • verb
  • To have permission to
  • To be possible to do
  • To preserve food by sealing it in a metal container

observational

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US / ˌɒbzəˈveɪʃənl /

UK / ˌɑːbzərˈveɪʃənl /

B1
  • adjecitve
  • Concerning observing, or watching and waiting

support

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US / səˈpɔ:t /

UK / səˈpɔrt, -ˈport /

A1
  • noun
  • Assistance or advice given to someone
  • Evidence that helps prove something is true
  • A thing to hold up or prevent from falling down
  • verb
  • To give assistance or advice to someone
  • To help prove or show that something is true
  • To hold up or prevent from falling down

but

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US / bət /

UK / bʌt,bət /

A1
  • conjunction
  • Used before you say something different, opposite

fifty

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US / 'fɪftɪ /

UK / ˈfɪfti /

A1
  • number
  • 50

formation

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US / fɔ:ˈmeɪʃn /

UK / fɔ:rˈmeɪʃn /

B1
  • noun
  • Process of creating; making a particular shape

give

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US / ɡɪv /

UK / ɡɪv /

A1
  • noun
  • Degree of flexibility in something, a material
  • verb
  • To hand over or present something to someone
  • To cause someone to have or experience something

research

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US / rɪ'sɜ:tʃ /

UK / rɪˈsɚtʃ, ˈriˌsɚtʃ /

A2
  • noun
  • Study done to discover new ideas and facts
  • Work done to find or discover knowledge
  • verb
  • To study in order to discover new ideas and facts

technically

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US / ˈteknɪkli /

UK / ˈtɛknɪkl:ɪ /

A2
  • adverb
  • In an exact and particular manner

star

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US / stɑ:(r) /

UK / stɑr /

A1
  • noun
  • Very famous person, usually an entertainer
  • Someone who does something very well
  • Your horoscope
  • A bright planet of hot gas in the night sky
  • A 5-6 sided asterisk-shape
  • verb
  • To perform or play a main role in a movie, play
  • To do something very well
  • To mark with a 5-6 sided asterisk-shape

quite

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US / kwaɪt /

UK / kwaɪt /

A1
  • adverb
  • Not very; fairly
  • Very; In a complete or total manner

maybe

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US / ˈmeɪbi /

UK / ˈmebi /

A1
  • adverb
  • Possibly but not certainly; perhaps

not

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US / nɒt /

UK / nɑt /

A1
  • adverb
  • Word indicating the negative
  • (Used to form the negative of verbs)

our

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US / 'aʊə(r) /

UK / aʊr /

A1
  • determiner
  • Belonging to us

brilliant

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US / 'brɪlɪənt /

UK / ˈbrɪljənt /

A2
  • adjecitve
  • Having a great amount of intelligence or talent
  • Being very bright, like a diamond; shining

neck

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US / nek /

UK / nɛk /

A2
  • noun
  • Part of the body joining the head and the body
  • Opening of a piece of clothing for your head
  • verb
  • (Lovers) to play affectionately; kissing

really

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US / ˈri:əli /

UK / ˈriəˌli, ˈrili /

A1
  • adverb
  • Used to stress something that is said; definitely
  • In a true or accurate manner
  • Very

would

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US / wʊd /

UK / wʊd /

A1
  • other
  • Used to indicate something imagined
  • Used to ask or request something politely
  • Verb used to indicate possibility, request etc.
  • Used to indicate a preference
  • Used to indicate a reaction
  • Indicates something that occurred repeatedly
  • Used to indicate willingness or ability to do

platform

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US / 'plætfɔ:m /

UK / ˈplætˌfɔrm /

B1
  • noun
  • Flat, raised structure that people stand on
  • Area from which you board a train at a station

halfway

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US / ˌhɑ:fˈweɪ /

UK / ˌhæfˈweɪ /

B2
  • adverb
  • A middle point between two extremes

nearly

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US / ˈniəli /

UK / ˈnɪrli /

A1
  • adverb
  • Not completely; almost

recent

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US / 'ri:snt /

UK / ˈrisənt /

A1
  • adjecitve
  • Happening or beginning not long ago

telescope

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US / ˈtelɪskəʊp /

UK / ˈtelɪskoʊp /

C2
  • noun
  • Tube-shaped device used to see a great distance
  • verb
  • To shorten by compacting tubes inside each other

apparently

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US / əˈpærəntli /

UK / əˈpærəntlɪ /

A2
  • adverb
  • According to what you heard; from what can be seen

brief

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US / bri:f /

UK / brif /

A2
  • adjecitve
  • (Of period of time) short; using few words
  • noun
  • Information and instructions given for a meeting
  • verb
  • To give information/instructions before a meeting

teach

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US / ti:tʃ /

UK / titʃ /

A1
  • verb
  • To help someone learn or do something

tweak

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US / twi:k /

UK / twik /

C1
  • noun
  • A small change or adjustment
  • verb
  • To make a small change or adjustment

whose

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US / hu:z /

UK / huz /

A1
  • pronoun
  • Refers to the person who owns something

clump

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US / klʌmp /

UK / klʌmp /

B2
  • noun
  • Mass or pile of something such as soil
  • Small group of trees, etc. growing near each other

also

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US / 'ɔ:lsəʊ /

UK / ˈɔlso /

A1
  • adverb
  • In addition; too; in a similar way

five

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US / faɪv /

UK / faɪv /

A1
  • number
  • 5

how

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US / haʊ /

UK / haʊ /

A1
  • adjecitve
  • To what degree? in what amount?
  • adverb
  • (Used to explain the way to do something)
  • exclamation
  • For what purpose or reason?
  • (Used to ask someone or something's condition)

kind

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US / kaɪnd /

UK / kaɪnd /

A1
  • adjecitve
  • In a caring and helpful manner
  • friendly and considerate
  • noun
  • One type of thing

live

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US / lɪv /

UK / liv /

A1
  • adjecitve
  • Being broadcast as events happen, not recorded
  • Carrying electric current; able to give a shock
  • Glowing because burning; hot
  • Not yet killed (for food)
  • adverb
  • (Music, drama) as it is performed
  • verb
  • To be alive
  • To experience a particular type of life
  • To make your home in a house or town

year

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US / jə: /

UK / jɪr /

A1
  • noun
  • Unit of time equal to 12 months or 365 or 366 days
  • Used to refer to the age of a person

you

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US / jʊ /

UK / ju /

A1
  • pronoun
  • Person someone is speaking or writing to
  • Person or people in general

demotion

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US / diːˈməʊʃn /

UK / diːˈmoʊʃn /

C2
  • noun
  • Act of lowering someone in rank or position

kuiper

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US / 'kʌ /

UK / 'kʌ /

A1

might

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US / maɪt /

UK / maɪt /

A1
  • other
  • Used to politely request an action
  • Used to express that something could happen
  • Power, strength, force or influence

researcher

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US / rɪ'sɜ:tʃə(r) /

UK / rɪˈsətʃɚ /

A2
  • noun
  • Someone who works to find new facts and ideas

satellite

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US / 'sætəlaɪt /

UK / ˈsætlˌaɪt /

B1
  • noun
  • Device sent into space that aids communication
  • Natural object in space that moves around another
  • Area controlled by another group or country

stretch

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US / stretʃ /

UK / strɛtʃ /

A2
  • noun
  • Making arm, leg muscles longer to ease them
  • A consecutive row of things
  • A period of time
  • verb
  • To make your arm, leg muscles long to ease them
  • To make something bigger by pulling on it

the

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US / ðə /

UK / ðə /

A1
  • article
  • Used to refer to something already mentioned
  • Used to show there is only one of something
  • determiner
  • Used to describe all of a family

unfortunately

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US / ʌnˈfɔ:tʃənətli /

UK / ʌnˈfɔːrtʃənətli /

B1
  • adverb
  • In a way that is to be regretted; unluckily

into

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US / 'ɪntə /

UK / ˈɪntu /

A1
  • preposition
  • Moving or going inside something
  • In the same direction as; in the direction of
  • So as to become; taking the state of

entire

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US / ɪn'taɪə(r) /

UK / ɛnˈtaɪr /

A2
  • adjecitve
  • Complete or full; with no part left out; whole

other

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US / 'ʌðə(r) /

UK / ˈʌðər /

A1
  • adjecitve
  • A thing different from that mentioned
  • determiner
  • (Something) else; not the first (one)
  • pronoun
  • Being the one and only thing of that category

oblong

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US / ˈɒblɒŋ /

UK / ˈɑ:blɔ:ŋ /

C1
  • adjecitve
  • (Of a shape) having four straight sides

one

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US / wʌn /

UK / wʌn /

A1
  • pronoun
  • You; we; people in general; someone
  • The thing or person previously referred to
  • adjecitve
  • Used to refer to people generally
  • Being a strong example of (something mentioned)
  • number
  • Number 1

settle

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US / 'setl /

UK / ˈsɛtl /

A2
  • noun
  • Type of wooden seat
  • verb
  • To make (a child, etc.) feel calm/ready for sleep
  • To complete or finalize e.g. a contract or debt
  • To end some troubles by reaching an agreement
  • To become accustomed to a new environment
  • (Of liquids) to move to the bottom of a container

rock

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US / rɒk /

UK / rɑk /

A1
  • noun
  • Type of popular music with a strong, loud beat
  • Strong, tough person who can be relied upon
  • Big stone; hard, solid substance forming mountains
  • verb
  • To be greatly upset by something, e.g. a death
  • To be extremely effective or pleasing
  • To play, sing along with, or dance to heavy music
  • To move back and forth or from side to side

turn

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US / tɜ:n /

UK / tɚn /

A1
  • noun
  • Place where changing of direction happens
  • Your time or chance to perform a duty
  • Your chance to play or do in say a game
  • Unexpected change, as in the weather
  • verb
  • To become (a particular age)
  • To become a different quality, color, etc.
  • To change the direction of something, e.g. a car
  • To move in an opposite direction or position
  • To shape metal with a spinning tool

than

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US / ðən /

UK / ðən /

A1
  • conjunction
  • Used to compare two things that are not equal

relative

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US / ˈrelətɪv /

UK / ˈrɛlətɪv /

A2
  • adjecitve
  • Measured or considered in comparison to another
  • (Grammar) referring to words that appear earlier
  • noun
  • Members of the family
  • Humans or animals sharing the same family history

eject

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US / ɪ'dʒekt /

UK / ɪ'dʒekt /

B2
  • verb
  • To make a disc or tape come out of a machine
  • To throw someone out; force someone to leave

proxima

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US / /

UK / /

A1
  • other
  • Nearest star to the sun; distance: . light years

click

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US / klɪk /

UK / klɪk /

A1
  • noun
  • The sound a computer mouse makes when you press it
  • A short, slight, and sharp sound
  • verb
  • To work well with someone or something
  • To press a computer mouse
  • To make a short, slight, and sharp sound

comet

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US / ˈkɒmɪt /

UK / ˈkɑ:mət /

B2
  • noun
  • Moving object in space, with a long, bright tail

giant

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US / 'dʒaɪənt /

UK / ˈdʒaɪənt /

A2
  • adjecitve
  • Very large, or much bigger than other things
  • noun
  • Tall, large, and powerful human-like creatures
  • Very successful, powerful person or organization

dim

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US / dɪm /

UK / dɪm /

B1
  • adjecitve
  • Not bright; not being clear
  • Not intelligent; a bit stupid or slow
  • Not likely to be good or successful
  • Unlikely
  • (Of memories) vague or unclear
  • verb
  • To reduce the brightness of a light

math

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US / mæθ /

UK / mæθ /

A2
  • noun
  • Study or science of numbers and shapes

light

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US / laɪt /

UK / laɪt /

A1
  • adjecitve
  • Being bright making it easy to see; not dark
  • Being pale and lacking darkness of color
  • Not heavy; weighing only a little
  • adverb
  • Carrying few bags when traveling
  • noun
  • A source of energy that makes a room or area bright
  • Way in which something or someone is understood
  • verb
  • To cause something to burn; put a burning match to
  • To provide a way to see ahead

those

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US / ðəʊz /

UK / ðoz /

A1
  • determiner
  • The people or things we are talking about
  • pronoun
  • The objects far from the speaker

grow

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US / ɡrəʊ /

UK / ɡro /

A1
  • verb
  • To get bigger and more mature; make plants do this
  • To improve; to develop better skills over time
  • To develop and become bigger or taller over time

since

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US / sɪns /

UK / sɪns /

A1
  • adverb
  • At a point before the present time
  • conjunction
  • For this reason; because
  • preposition
  • From the time in the past that

specifically

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US / spəˈsɪfɪkli /

UK / spəˈsɪfɪkli /

A2
  • adverb
  • As regards a particular thing; closely related to
  • In particular

start

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US / stɑ:t /

UK / stɑrt /

A1
  • noun
  • First time or place that a thing exists; beginning
  • First opportunity to achieve something, e.g. a job
  • Sudden action or movement because you are scared
  • other
  • Beginning of something in place or time
  • verb
  • To do, be or happen for the first time; begin
  • To turn something on

well

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US / wel /

UK / wɛl /

A1
  • adjecitve
  • Being in a fortunate, good condition or state
  • Healthy and in good condition
  • adverb
  • In an acceptable, proper, or successful manner
  • In a complete, total, or full manner
  • A great and considerable degree
  • In a successful way, in a good or satisfactory way
  • exclamation
  • Used to begin or continue a particular statement
  • Used to show you want to start saying something
  • Used to express that you are waiting for a reply
  • You say this to change the topic of a conversation
  • Used to indicate you are making a final remark
  • noun
  • Long deep hole in the ground to get water
  • verb
  • To cause your eyes to fill with tears

yourself

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US / jɔ:ˈself /

UK / jʊrˈsɛlf, jɔr-, jor-, jə- /

A1
  • pronoun
  • Reflexive form of 'you', used for an emphasis

transit

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US / ˈtrænzɪt /

UK / ˈtrænsɪt, -zɪt /

B1
  • adjecitve
  • Concerning a transport system in a city
  • noun
  • System of transportation, often in a city
  • Process of changing planes at airports
  • verb
  • To change from one airplane to another at airports

capability

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US / ˌkeɪpəˈbɪləti /

UK / ˌkeɪpə'bɪləti /

B1
  • noun
  • Means, ability, or potential to do something

depend

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US / dɪˈpend /

UK / dɪˈpend /

B1
  • verb
  • Be controlled or determined by (someone/something)

think

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US / θɪŋk /

UK / θɪŋk /

A1
  • verb
  • To have an idea about something without certainty
  • To have an idea, opinion or belief about something

difficult

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US / 'dɪfɪkəlt /

UK / ˈdɪfɪˌkʌlt, -kəlt /

A1
  • adjecitve
  • Hard; not easy; you need to work hard to do it

connection

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US / kəˈnekʃn /

UK / kəˈnɛkʃən /

A2
  • noun
  • Something that joins things together; being joined
  • Person you know who can help you in some way
  • Changing vehicles when traveling

jury

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US / ˈdʒʊəri /

UK / ˈdʒʊri /

B1
  • noun
  • 12 citizens who decide if someone is guilty or not

completely

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US / kəmˈpli:tli /

UK / kəmˈpliːtli /

A1
  • adverb
  • In every way or as much as possible

kicking

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US / ˈkɪkɪŋ /

UK / ˈkɪkɪŋ /

A2
  • verb
  • To hit or move something with the foot

exile

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US / 'eksaɪl /

UK / ˈɛɡˌzaɪl, ˈɛkˌsaɪl /

B2
  • noun
  • State of being forced to leave your country
  • One forced to leave their home and live elsewhere
  • verb
  • One forced to leave their home and live elsewhere

question

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US / 'kwestʃən /

UK / ˈkwɛstʃən /

A1
  • noun
  • Issue or problems you are dealing with
  • What you ask about; issue
  • verb
  • To ask for or try to get information
  • To have or express concerns or uncertainty

front

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US / frʌnt /

UK / frʌnt /

A1
  • adjecitve
  • Opposite of back; the forward part of an object
  • noun
  • Behavior not showing a person's true feelings
  • Area where fighting in a war is happening
  • Place where air of different temperatures meets
  • verb
  • To have the forward part facing something
  • To lead a group of people, usually a band

simulation

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US / ˌsɪmjuˈleɪʃn /

UK / ˌsɪmjəˈleʃən /

B1
  • noun
  • A copying method to study the real world

lawn

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US / lɔ:n /

UK / lɔn /

B1
  • noun
  • Fine cotton cloth, either plain or printed
  • Ground on which grass grows, as in a garden

astronomer

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US / əˈstrɒnəmə(r) /

UK / əˈstrɑ:nəmə(r) /

B2
  • noun
  • Scientist studying stars and other bodies in space

cold

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US / kəʊld /

UK / kold /

A1
  • adjecitve
  • Having a very low temperature
  • Being unfriendly or lacking emotion
  • noun
  • Illness of sneezing, coughing, and a sore throat

earth

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US / ɜ:θ /

UK / ɚθ /

A1
  • noun
  • Wire connecting an electrical device to the ground
  • The planet we live on
  • Soil in which we grow plants

fact

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US / fækt /

UK / fækt /

A1
  • noun
  • Something that is known or proved to be true

few

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US / fju: /

UK / fju /

A1
  • pronoun
  • Not many, a small number

messy

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US / 'mesɪ /

UK / ˈmɛsi /

A2
  • adjecitve
  • Being complex or difficult to fix
  • Being untidy or dirty

much

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US / mʌtʃ /

UK / mʌtʃ /

A1
  • adjecitve
  • Very; to a high level or degree
  • adverb
  • A lot; large amount; a high degree of
  • Nearly; basically
  • On many occasions; often
  • noun
  • A large amount; a great quantity

strong

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US / strɒŋ /

UK / strɔŋ /

A1
  • adjecitve
  • (Of tea or beer) dark or thick
  • Having big muscles; physically powerful

system

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US / 'sɪstəm /

UK / ˈsɪstəm /

A1
  • adjecitve
  • Working in an organized, logical way
  • noun
  • Set of organized, planned ideas that work together

computer

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US / kəmˈpju:tə(r) /

UK / kəmˈpjutɚ /

A1
  • noun
  • Machine for storing data, accessing the internet

mass

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US / mæs /

UK / mæs /

B1
  • noun
  • Religious ceremony in some Christian churches
  • Large amount or number of something
  • Main or largest part of something
  • Large number of people considered as a whole
  • Amount of matter that an object has
  • verb
  • To gather people or things into a large group

blame

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US / bleɪm /

UK / blem /

A2
  • noun
  • Act of saying someone did something bad
  • verb
  • To say someone is responsible for something bad

just

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US / dʒʌst /

UK / dʒʌst /

A1
  • adjecitve
  • Proper or appropriate; as is deserved
  • Doing or being what is right or fair
  • Legally correct; having enough evidence
  • adverb
  • Almost; nearly
  • Exactly at the time of
  • Exactly (the same as, like)

talk

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US / tɔ:k /

UK / tɔk /

A1
  • noun
  • Style of speaking
  • Discussion between two countries
  • Giving information in front of people; lecture
  • Saying things or ideas to someone with words
  • verb
  • To make a formal speech about something
  • To say things or ideas to someone with words

amount

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US / ə'maʊnt /

UK / əˈmaʊnt /

A1
  • noun
  • Quantity of something
  • verb
  • To add up to a certain figure

centauri

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US / sɛnˈtɑri /

UK / /

A1
  • adjective
  • Used with preceding Greek letter or numeral to designate a star in the constellation Centaurus.
  • proper noun
  • A large southern constellation (the Centaur). It lies in the Milky Way and contains the stars Alpha

middle

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US / 'mɪdl /

UK / ˈmidl /

A1
  • adjecitve
  • Equal distance from extremes
  • noun
  • Place that is halfway between two things

astronomical

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US / ˌæstrəˈnɒmɪkl /

UK / ˌæstrəˈnɑmɪkəl /

B2
  • adjecitve
  • Extremely large or high
  • Of the study of stars and other bodies in space

for

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US / fə(r) /

UK / fɔr,fə /

A1
  • preposition
  • Used to show the purpose, or need of something

short

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US / ʃɔ:t /

UK / ʃɔrt /

A1
  • adverb
  • Less than what is needed
  • Suddenly stopping what you are saying or doing
  • verb
  • (Of electric circuit) to spark because faulty
  • adjecitve
  • Measuring a small distance
  • Happening for a small amount of time
  • Unfriendly or rude

time

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US / taɪm /

UK / taɪm /

A1
  • noun
  • Speed at which music is played; tempo
  • Point as shown on a clock, e.g. 3 p.m
  • Number of hours, minutes needed to do something
  • Occasion when something happens
  • Period or occasion that something occurred
  • Period in history or the past
  • Something measured in minutes, hours, days, etc.
  • How long an event takes; duration
  • verb
  • To check speed at which music is performed
  • To choose a specific moment to do something
  • To measure how long an event takes, e.g. a race
  • To schedule something to occur at a specific moment

then

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US / ðen /

UK / ðɛn /

A1
  • adverb
  • A time that is not now
  • Following another thing in time or arrangement
  • Following on reasonably from what was just stated
  • At that time, not now

solid

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US / 'sɒlɪd /

UK / ˈsɑlɪd /

A2
  • adjecitve
  • Being able to be trusted; reliable
  • Substance that is hard or of fixed shape
  • Being well made and expected to last long
  • Having no space or emptiness inside
  • Being made entirely of one material or substance
  • noun
  • Something firm or hard; not gas or liquid

step

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US / step /

UK / stɛp /

A1
  • noun
  • Movement done as part of a particular dance
  • Distance covered by one movement of a leg; stride
  • One part or stage in a process
  • Sound made by the feet while walking; footstep
  • Flat horizontal piece that forms stairs
  • verb
  • To raise and moving the foot to put it down

wind

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US / wɪnd /

UK / wɪnd /

A1
  • adjecitve
  • (Musical instruments) that you blow into to play
  • noun
  • A current of air moving approximately horizontally, especially one strong enough to be felt
  • Something that has influence
  • verb
  • If a road, path, or river winds, it follows a route that turns repeatedly in different directions
  • To turn or cause something to turn
  • To twist around something

annual

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US / ˈænjuəl /

UK / ˈænjuəl /

A2
  • adjecitve
  • Happening once a year, or every year
  • noun
  • Book (in a series) released each year

through

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US / θru: /

UK / θru /

A2
  • adjecitve
  • having finished using or doing something
  • adverb
  • From the beginning of something until the end
  • preposition
  • Over, in, across an entire thing or place
  • Allowing you to pass between, or to
  • By a particular way or process; by the use of

anyone

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US / ˈeniwʌn /

UK / ˈɛniˌwʌn, -wən /

A1
  • pronoun
  • Any person

close

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US / kləʊz /

UK / kloʊz /

A1
  • adjecitve
  • Almost; near
  • (Of a friend) well-known; liked by others
  • Being near or related
  • Similar; nearly the same
  • verb
  • To come progressively nearer to something
  • To end; to bring to an end
  • To make something shut; stop from being open

case

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US / keɪs /

UK / kes /

A1
  • noun
  • Container used to carry things, e.g. clothes
  • Set of facts about a crime
  • Set of facts about an event
  • Example or instance of something
  • verb
  • To find out about a place, as in planning to steal

distant

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US / 'dɪstənt /

UK / ˈdɪstənt /

B1
  • adjecitve
  • Unfriendly; cold
  • Existing or happening far away in place or time
  • (Of relationships) not being closely related

disk

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US / dɪsk /

UK / dɪsk /

B1
  • noun
  • Thin or flat, round object, e.g. for storing data

discover

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US / dɪˈskʌvə(r) /

UK / dɪˈskʌvɚ /

A2
  • verb
  • To find something new that was not known before

find

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US / faɪnd /

UK / faɪnd /

A1
  • noun
  • Object discovered by chance
  • Things that have been discovered from searching
  • verb
  • To become aware of something that is happening
  • To discover or meet by chance
  • To decide if someone is guilty of a crime, or not
  • To learn through study, research, or effort
  • To discover something by looking for it

link

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US / lɪŋk /

UK / lɪŋk /

A2
  • noun
  • Any one of the rings that are part of a chain
  • Connection between two or more things or people
  • Webpage item you click to go to another webpage
  • verb
  • To join or connect together

energy

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US / 'enədʒɪ /

UK / ˈɛnədʒi /

A2
  • noun
  • Physical or mental strength

rocky

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US / 'rɒkɪ /

UK / ˈrɑki /

A1
  • adjecitve
  • (Of a marriage, etc.) involving many difficulties
  • With abundant rocks or stones

enough

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US / ɪˈnʌf /

UK / ɪˈnʌf /

A1
  • adjecitve
  • Sufficient to answer the need
  • adverb
  • To a satisfactory degree
  • pronoun
  • Equal to what is needed; as much as required
  • Adequate number or amount

take

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US / teɪk /

UK / tek /

A1
  • noun
  • Filming of a single scene for TV or the movies
  • verb
  • To accept something that is offered
  • To use a method of traveling, e.g. a bus or train
  • To use a camera to make (a photo)
  • To pick up something and go away with it
  • To study a subject in school
  • To attempt to pass (an exam)
  • To require a certain amount of time, money, space

spot

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US / spɒt /

UK / spɑt /

A2
  • noun
  • A certain place or area
  • A difficult time; awkward situation
  • Place or ranking on a list
  • A small amount of (substance help hard work etc.)
  • Mark caused by a drop of liquid, food, etc.
  • verb
  • To see someone or something by chance

building

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US / ˈbɪldɪŋ /

UK / ˈbɪldɪŋ /

A1
  • noun
  • A structure with a roof and walls, e.g. a house
  • verb
  • To establish e.g. a reputation, over time
  • To construct a house, office, factory

bend

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US / bend /

UK / bɛnd /

A2
  • noun
  • When a road changes direction; turn
  • verb
  • To become curved or no longer straight
  • To move your body so that it is not straight up
  • To turn in a different direction, as a road
  • To use force to make an object not straight

kick

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US / kɪk /

UK / kɪk /

A2
  • noun
  • Feeling of enjoyment or excitement
  • verb
  • To hit or move something with the foot

lesson

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US / 'lesn /

UK / ˈlɛsən /

A1
  • noun
  • Something done to learn or teach something; class
  • Wisdom or knowledge received from an experience

propose

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US / prə'pəʊz /

UK / prəˈpoz /

A2
  • verb
  • To make an offer of marriage
  • To offer or put forward an idea for consideration

any

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US / 'enɪ /

UK / ˈɛni /

A1
  • adjecitve
  • One, or some, no matter which
  • pronoun
  • One (thing) of many; some

distance

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US / 'dɪstəns /

UK / ˈdɪstəns /

A2
  • noun
  • Lack of friendliness toward another person
  • Amount of space between two places or things
  • verb
  • To make it clear that you are not involved

come

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US / kʌm /

UK / kʌm /

A1
  • verb
  • To arrive at a place
  • (Of mail) to be delivered
  • To move toward someone; go with someone
  • To reach a certain point or state

help

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US / help /

UK / hɛlp /

A1
  • noun
  • Something given to enable a person to do something
  • Assistance given to someone in need
  • Someone who makes something easier or possible
  • verb
  • To act to enable a person to do something; assist
  • To make something better or less difficult

observe

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US / əbˈzɜ:v /

UK / əbˈzɜ:rv /

A2
  • verb
  • To celebrate a particular holiday/religious event
  • To obey or follow laws, rules, or customs
  • To watch carefully; to make a comment

think

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US / θɪŋk /

UK / θɪŋk /

A1
  • verb
  • To have an idea about something without certainty
  • To have an idea, opinion or belief about something

direct

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US / də'rekt /

UK / dɪˈrɛkt, daɪ- /

A2
  • adverb
  • Coming straight from something
  • verb
  • To tell someone in a very clear way to do something
  • To show the way by conducting or leading
  • To control the acting in a movie or play

large

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US / lɑ:dʒ /

UK / lɑ:rdʒ /

A1
  • adjecitve
  • Big; of great size; broad, tall, wide, or fat

most

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US / məʊst /

UK / most /

A1
  • adverb
  • Very; extremely
  • Greatest possible degree
  • pronoun
  • Nearly all of something

rest

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US / rest /

UK / rɛst /

A1
  • noun
  • Time when one relaxes, sleeps, or is inactive
  • State in which there is a lack of motion
  • Part of something remaining after some was used
  • verb
  • To stop working or avoid activity to recover
  • (Of dead person) to lie in a grave
  • To lean, support or place something against
  • To not be tired because you had enough sleep

contextualize

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US / kənˈtekstʃuəlaɪz /

UK / kənˈtɛkstʃuəˌlaɪz /

A1
  • verb
  • To see the larger picture of something

investigate

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US / ɪn'vestɪɡeɪt /

UK / ɪnˈvɛstɪˌɡet /

A2
  • verb
  • To try to find out facts; to carry out research

keep

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US / ki:p /

UK / kip /

A1
  • noun
  • Large, strong tower in the middle of a castle
  • Money spent on you so you can live in a place
  • verb
  • To continue doing something; not to stop
  • To stop balls going in a goal in sports
  • To not give back or return something
  • (Of food) to not spoil or not rot
  • To take possession of something to own, e.g. a pet
  • To have and continue to hold something
  • To do something that you have promised or agreed
  • To stay in a certain place or condition
  • To maintain the rules

name

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US / neɪm /

UK / nem /

A1
  • noun
  • What something or someone is called
  • verb
  • To state what someone is called, e.g. John

slash

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US / slæʃ /

UK / slæʃ /

B2
  • noun
  • Line ( / ) used in writing
  • Long, deep cut, caused by a sharp object
  • verb
  • To cut violently with a sharp object
  • To decrease something by a large amount

something

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US / ˈsʌmθɪŋ /

UK / ˈsʌmθɪŋ /

A1
  • adverb
  • In some degree or measure
  • noun
  • a person or thing of some value or consequence
  • pronoun
  • Thing that is not yet known or named
  • Approximately

conception

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US / kənˈsepʃn /

UK / kənˈsɛpʃən /

B1
  • noun
  • Moment when a woman's pregnancy begins
  • Idea about something, or how it should be

along

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US / əˈlɒŋ /

UK / əˈlɔ:ŋ /

A1
  • adverb
  • As a companion; taken with someone
  • preposition
  • At a point on a line

from

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US / frəm /

UK / frʌm, frɑm,frəm /

A1
  • preposition
  • Starting at a particular place, time or level

out

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US / aʊt /

UK / aʊt /

A1
  • adverb
  • No longer stylish (e.g. fashion)
  • Away from home, business, or the usual place
  • In a direction/movement away from inside or center
  • noun
  • Act when a batter cannot continue playing
  • verb
  • To tell people a secret

over

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US / 'əʊvə(r) /

UK / ˈovɚ /

A1
  • adverb
  • Finished; no longer happening
  • Towards the ground/away from a standing position
  • noun
  • A set of six consecutive balls bowled in cricket
  • other
  • Finished
  • preposition
  • Showing the relation when a thing is above another
  • On or covering something
  • Above or across something
  • More than you need
  • From one side to the other
  • In the direction of; toward

geometry

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US / dʒiˈɒmətri /

UK / dʒiˈɑ:mətri /

B2
  • noun
  • Mathematical study of shapes, surfaces, and space
  • Mathematical shape of something

gravity

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US / ˈgrævəti /

UK / ˈɡrævɪti /

B1
  • noun
  • (Of a situation) extreme seriousness
  • Force making things fall towards the ground

inside

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US / ˌɪn'saɪd /

UK / ɪnˈsaɪd, ˈɪnˌsaɪd /

A2
  • adjecitve
  • Being in something
  • Being in a building
  • adverb
  • Into a house; indoors
  • noun
  • Inner part or surface of something

million

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US / ˈmɪljən /

UK / ˈmɪljən /

A1
  • number
  • 1,000,000

publish

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US / 'pʌblɪʃ /

UK / ˈpʌblɪʃ /

A2
  • verb
  • To prepare and make available a book magazine etc.
  • To release information to the general public

stem

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US / stem /

UK / stɛm /

B1
  • noun
  • Long thin central part of a plant, bearing leaves
  • Long thin part supporting something e.g. a light
  • Main part of a word, e.g. 'use' in 'useful'
  • verb
  • To remove the stem of a flower or fruit
  • To start from or be the origin of
  • To stop something bad from spreading or developing

while

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US / waɪl /

UK / hwaɪl, waɪl /

A1
  • conjunction
  • In spite of the fact that; although
  • During the time that; at the same time
  • noun
  • Short amount of time

available

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US / əˈveɪləbl /

UK / əˈveləbəl /

A1
  • adjecitve
  • Present and able to be used
  • Able to be used at a scheduled time

either

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US / ˈaɪðə(r) /

UK / ˈiðɚ, ˈaɪðɚ /

A1
  • adjecitve
  • One of two (used when there is a choice of two)
  • adverb
  • (After negative statements) likewise, in addition
  • conjunction
  • Used as the first of two connected things
  • determiner
  • Used as the first of two connected things
  • pronoun
  • The one or the other

genuine

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US / ˈdʒenjuɪn /

UK / ˈdʒɛnjuɪn /

A2
  • adjecitve
  • Being real, actual, and not false or artificial
  • Being sincere in your actions or character

stuck

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US / stʌk /

UK / stʌk /

A2
  • adjecitve
  • Not able to move
  • verb
  • To push a sharp or pointed object into something
  • To join together using glue or paste
  • To remain in one place or position for a long time

dust

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US / dʌst /

UK / dʌst /

A2
  • noun
  • Fine dry powder that builds up on surfaces
  • verb
  • To apply a fine powder to, e.g. sugar to a cake
  • To wipe something to remove dirt

after

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US / 'ɑ:ftə(r) /

UK / ˈæftɚ /

A1
  • adverb
  • Later than another time, or behind something
  • conjunction
  • Following something before
  • preposition
  • When an event happened or time has passed

many

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US / 'menɪ /

UK / ˈmɛni /

A1
  • determiner
  • Used to refer a large number of things

leftover

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US / ˈleftəʊvə(r) /

UK / ˈlɛftˌovɚ /

C2
  • adjecitve
  • (Of food) that you didn't eat at a meal

team

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US / ti:m /

UK / tim /

A1
  • noun
  • Group of people working on a task together
  • Group of people playing a sport together

will

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US / wɪl /

UK / wɪl /

A1
  • noun
  • Desire or choice of someone
  • Document saying who gets your money when you die
  • Strong desire to do something; determination
  • Desire to do something; strong wish to do
  • other
  • Used with verbs to express the future
  • verb
  • To leave property to someone after your death
  • To use mental effort to make something happen
  • Am (is, are) likely to do
  • To influence someone to do something
  • To make something happen by strongly wanting it

thousand

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US / ˈθaʊznd /

UK / ˈθaʊzənd /

A1
  • number
  • Number 1,000

certain

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US / ˈsə:tn /

UK / ˈsɚtn /

A1
  • adjecitve
  • Definite, fixed
  • Referring to an unspecified amount or quantity
  • Being sure about something; without doubt

day

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US / deɪ /

UK / de /

A1
  • noun
  • A period of 24 hours beginning at midnight
  • The period of time when it is light outside
  • Person's name

ever

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US / 'evə(r) /

UK / ˈɛvɚ /

A1
  • adverb
  • At any time; at all times in the future

own

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US / əʊn /

UK / on /

A1
  • adjecitve
  • Belong to oneself
  • determiner
  • Yours, his, hers, etc.; not belonging to another
  • pronoun
  • (Something) belong to myself
  • verb
  • To have something as your property

similar

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US / ˈsɪmələ(r) /

UK / ˈsɪməlɚ /

A1
  • adjecitve
  • Nearly the same; alike

tricky

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US / 'trɪkɪ /

UK / ˈtrɪki /

A2
  • adjecitve
  • Difficult, so needing skill to do or deal with
  • Likely to use tricks; dishonest or deceptive

get

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US / ɡet /

UK / ɡɛt /

A1
  • verb
  • To become affected by illness or disease
  • To begin to feel or understand an emotion or idea
  • To send or bring someone or something home, etc.
  • To go somewhere to obtain something
  • To (cause to) do a particular thing
  • To obtain, receive or be given something
  • To currently have
  • To prepare for use
  • To understand something being said or read

hypothetically

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US / ˌhaɪpə'θetɪklɪ /

UK / ˌhaɪpə'θetɪklɪ /

B2
  • adverb
  • In a hypothetical way; as an example

hard

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US / hɑ:d /

UK / hɑː(r)d /

A1
  • adjecitve
  • Difficult to do; difficult to understand
  • (Of facts) not able to be misunderstood; clear
  • (Of alcohol) strong
  • Involving or requiring lots of work, effort, care
  • Being full of pain, trouble, and problems
  • Strong
  • (Of edge) clear; sharp
  • Difficult to bend, break or cut; solid
  • adverb
  • With lots of force, power, or impact

placeholder

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US / ˈpleɪshəʊldə(r) /

UK / ˈplesˌholdɚ /

A1
  • noun
  • Symbol in a logical or mathematical expression that can be replaced by the name of any member of spe

roughly

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US / ˈrʌfli /

UK / ˈrʌflɪ /

B1
  • adverb
  • Approximately; (of numbers) about; around
  • In a manner that is violent or not careful
  • In an inexact, imprecise or violent way
  • In a basic, simple manner

baby

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US / ˈbeɪbi /

UK / ˈbeɪbi /

A2
  • adjecitve
  • Small in size; smaller than usual
  • noun
  • A very young child, who cannot yet speak
  • verb
  • To treat someone as if they were newly born

ahem

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US / ə'hem /

UK / əˈhɛm /

A1
  • exclamation
  • Sound to clear the throat to get attention

despite

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US / dɪˈspaɪt /

UK / dɪˈspaɪt /

A2
  • preposition
  • Without being affected by something; in spite of

fun

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US / fʌn /

UK / fʌn /

A1
  • adjecitve
  • Amusing and enjoyable
  • noun
  • Enjoyable or amusing quality or feeling

encase

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US / ɪnˈkeɪs /

UK / ɛnˈkes /

C2
  • verb
  • (Of hard thing) to surround or totally envelop

ride

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US / raɪd /

UK / raɪd /

A1
  • noun
  • Machine at an amusement park for riding on for fun
  • Trip on a bicycle or a horse
  • verb
  • To travel in a particular vehicle as a passenger
  • To sit on and control a horse or vehicle

right

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US / raɪt /

UK / raɪt /

A1
  • adjecitve
  • Correct or true
  • The south side of you looking at the rising sun
  • adverb
  • Exactly in a place or time
  • Being appropriate for a particular event
  • In a straight or direct manner
  • noun
  • Something you are legally or morally allowed to do
  • Ideal of what is just and good
  • Political view based on conservatism
  • verb
  • To fix something previously wrong or unjust
  • To make upright, as a boat that has turned over

thirty

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US / 'θɜ:tɪ /

UK / ˈθə:ti /

A1
  • number
  • 30

annual

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US / ˈænjuəl /

UK / ˈænjuəl /

A2
  • adjecitve
  • Happening once a year, or every year
  • noun
  • Book (in a series) released each year

anyone

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US / ˈeniwʌn /

UK / ˈɛniˌwʌn, -wən /

A1
  • pronoun
  • Any person

bend

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US / bend /

UK / bɛnd /

A2
  • noun
  • When a road changes direction; turn
  • verb
  • To become curved or no longer straight
  • To move your body so that it is not straight up
  • To turn in a different direction, as a road
  • To use force to make an object not straight

case

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US / keɪs /

UK / kes /

A1
  • noun
  • Container used to carry things, e.g. clothes
  • Set of facts about a crime
  • Set of facts about an event
  • Example or instance of something
  • verb
  • To find out about a place, as in planning to steal

disk

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US / dɪsk /

UK / dɪsk /

B1
  • noun
  • Thin or flat, round object, e.g. for storing data

energy

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US / 'enədʒɪ /

UK / ˈɛnədʒi /

A2
  • noun
  • Physical or mental strength

find

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US / faɪnd /

UK / faɪnd /

A1
  • noun
  • Object discovered by chance
  • Things that have been discovered from searching
  • verb
  • To become aware of something that is happening
  • To discover or meet by chance
  • To decide if someone is guilty of a crime, or not
  • To learn through study, research, or effort
  • To discover something by looking for it

enough

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US / ɪˈnʌf /

UK / ɪˈnʌf /

A1
  • adjecitve
  • Sufficient to answer the need
  • adverb
  • To a satisfactory degree
  • pronoun
  • Equal to what is needed; as much as required
  • Adequate number or amount

kick

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US / kɪk /

UK / kɪk /

A2
  • noun
  • Feeling of enjoyment or excitement
  • verb
  • To hit or move something with the foot

lesson

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US / 'lesn /

UK / ˈlɛsən /

A1
  • noun
  • Something done to learn or teach something; class
  • Wisdom or knowledge received from an experience

task

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US / tɑ:sk /

UK / tæsk /

A2
  • noun
  • Big or small piece of work someone has to do
  • verb
  • To be given something to do, e.g. wash dishes

watch

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US / wɒtʃ /

UK / wɑtʃ /

A1
  • noun
  • Period of time someone is responsible for guarding
  • Device you wear on your wrist that shows the time
  • Official warning statement, e.g. of bad weather
  • verb
  • To keep in check, manage, or control something
  • To look at something for entertainment, e.g. TV
  • To guard a place or people; protect child, etc.
  • To look at carefully to work out what is happening
  • To protect and care for someone or something

about

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US / ə'baʊt /

UK / əˈbaʊt /

A1
  • adverb
  • To be ready to; going to
  • Nearly; approximately; roughly
  • Near; next to; close to
  • In every direction; in the area of
  • preposition
  • Concerning or of (a topic)

absolute

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US / ˈæbsəlu:t /

UK / ˈæbsəˌlut /

A2
  • adjecitve
  • Complete; total; pure; not limited in any way
  • noun
  • Something that is complete, total, pure, certain

even

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US / 'i:vn /

UK / ˈivən /

A1
  • adjecitve
  • Being equal in influence, power, possibility etc.
  • Being divided equally or fairly
  • (Of teams/contest) with similar chances of success
  • Smooth, level, or regular
  • Can be divided by 2; ending in 2, 4, 6, 8, or 0
  • At a regular, equally steady manner
  • Remaining steady and unchanging
  • adverb
  • (When this is surprising) as well; too
  • (Used to compare two things/stress the difference)
  • verb
  • To make something level; to flatten
  • To make something equal

again

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US / ə'ɡen /

UK / əˈɡɛn /

A1
  • adverb
  • One more time, once more

like

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US / laɪk /

UK / laɪk /

A1
  • adjecitve
  • Being equal in status or kind to something else
  • Similar; the same
  • adverb
  • For example
  • preposition
  • Used as a filler; used to ad emphasis
  • In a way similar to the way something is done
  • Such as; for example
  • verb
  • To want to
  • To find something pleasing; to prefer something

what

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US / wɒt /

UK / hwɑt, hwʌt, wɔt, wʌt,hwət, wət /

A1
  • pronoun
  • Thing or things that; the same kind as
  • Used to emphasize something you are about to say
  • adjecitve
  • Used to refer to a particular amount, or number
  • Used to place emphasis on a particular quality
  • adverb
  • To a certain degree
  • determiner
  • Question words used for asking for information
  • exclamation
  • Used to express excitement, shock, or surprise
  • Used to ask people to repeat something they said

that

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US / ðæt /

UK / ðæt, ðət /

A1
  • adjecitve
  • The person or thing being talked about
  • Used to identify something both the speakers know
  • adverb
  • Used to reinforce adjectives and adverbs
  • To such a degree
  • conjunction
  • Used to connect a noun clause
  • Used to introduce an adverbial clause
  • Used to introduce a noun clause
  • determiner
  • Used as a noun to refer to something
  • pronoun
  • Referring an object far away
  • Used to refer to the relative pronoun ‘which’

but

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US / bət /

UK / bʌt,bət /

A1
  • conjunction
  • Used before you say something different, opposite

give

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US / ɡɪv /

UK / ɡɪv /

A1
  • noun
  • Degree of flexibility in something, a material
  • verb
  • To hand over or present something to someone
  • To cause someone to have or experience something

fifty

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US / 'fɪftɪ /

UK / ˈfɪfti /

A1
  • number
  • 50

formation

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US / fɔ:ˈmeɪʃn /

UK / fɔ:rˈmeɪʃn /

B1
  • noun
  • Process of creating; making a particular shape

research

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US / rɪ'sɜ:tʃ /

UK / rɪˈsɚtʃ, ˈriˌsɚtʃ /

A2
  • noun
  • Study done to discover new ideas and facts
  • Work done to find or discover knowledge
  • verb
  • To study in order to discover new ideas and facts

star

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US / stɑ:(r) /

UK / stɑr /

A1
  • noun
  • Very famous person, usually an entertainer
  • Someone who does something very well
  • Your horoscope
  • A bright planet of hot gas in the night sky
  • A 5-6 sided asterisk-shape
  • verb
  • To perform or play a main role in a movie, play
  • To do something very well
  • To mark with a 5-6 sided asterisk-shape

technically

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US / ˈteknɪkli /

UK / ˈtɛknɪkl:ɪ /

A2
  • adverb
  • In an exact and particular manner

maybe

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US / ˈmeɪbi /

UK / ˈmebi /

A1
  • adverb
  • Possibly but not certainly; perhaps

explain

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US / ɪk'spleɪn /

UK / ɪkˈsplen /

A1
  • verb
  • To make clear or easy to understand by describing

point

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US / pɔɪnt /

UK / pɔɪnt /

A1
  • noun
  • An item to be discussed
  • Small spot or dot
  • Fact or detail
  • Feature of something
  • The size of the text on a page or screen
  • A certain time or stage in a process
  • Certain position in time or space
  • Idea or fact you try to convince people about
  • Measurement of scores in a game, sport
  • Sharp end of something, e.g. a pen or pin
  • verb
  • To face a certain direction, e.g. north
  • To indicate something with your finger to others

speculative

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US / ˈspekjələtɪv /

UK / ˈspɛkjulətɪv, -ˌle- /

B2
  • adjecitve
  • Not based on sure knowledge; based on intuition

skill

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US / skɪl /

UK / skɪl /

A2
  • noun
  • Ability to do something well

previous

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US / ˈpri:viəs /

UK / ˈpriviəs /

A2
  • adjecitve
  • Existing or happening before the present time

plus

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US / plʌs /

UK / plʌs /

A2
  • noun
  • A benefit or advantage
  • preposition
  • In addition; add
  • In addition to; Indicates a number above
  • Having a value greater than zero

reason

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US / 'ri:zn /

UK / ˈrizən /

A1
  • noun
  • Ability to think about facts and form a judgment
  • Explanation for why something occurred or was done
  • verb
  • To think and make conclusions in a logical manner

too

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US / tu: /

UK / tu /

A1
  • adverb
  • In addition, also; with emphasis
  • Say that something is more than you want

gravitational

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US / ˌgrævɪˈteɪʃənl /

UK / ˌɡrævɪˈteɪʃənl /

C1
  • adjecitve
  • Concerning the force of gravity

neptune

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US / ˈneptju:n /

UK / ˈnɛpˌtun, -ˌtjun /

A1
  • other
  • A giant planet with a ring of ice particles; the th planet from the sun is the most remote of the ga

visit

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US / ˈvɪzɪt /

UK / ˈvɪzɪt /

A1
  • noun
  • Trip to a place for a time, usually for a reason
  • verb
  • To go to a place for a time, usually for a reason

story

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US / 'stɔ:rɪ /

UK / ˈstɔri, ˈstori /

A1
  • noun
  • One of many floors or levels in a building
  • Account or description of how something happened

weird

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US / wɪəd /

UK / wɪrd /

B1
  • adjecitve
  • Odd or unusual; surprising; strange

android

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US / 'ændrɔɪd /

UK / ˈænˌdrɔɪd /

B1
  • noun
  • Robot that looks or seems human
  • Trademarked computer operating system

actually

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US / ˈæktʃuəli /

UK / ˈæktʃuəli /

A1
  • adverb
  • Used to add new (often different) information

use

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US / ju:s /

UK / ju:s /

A1
  • noun
  • Ability to employ something
  • Need to enable it to work
  • Permission to do something with something
  • Act of spending money
  • Operation of a machine for its function
  • verb
  • To have; to eat, drink, consume etc.
  • To need to operate or work
  • To operate a machine, e.g. a computer
  • To treat a person badly
  • To do something with, for a task or purpose

exactly

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US / ɪgˈzæktli /

UK / ɪɡˈzæktli /

A1
  • adverb
  • No more and no less than; precisely

massive

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US / ˈmæsɪv /

UK / ˈmæsɪv /

B1
  • adjecitve
  • Very big; large; too big

science

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US / 'saɪəns /

UK / ˈsaɪəns /

A2
  • noun
  • Study of the physical world, based on facts

stretch

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US / stretʃ /

UK / strɛtʃ /

A2
  • noun
  • Making arm, leg muscles longer to ease them
  • A consecutive row of things
  • A period of time
  • verb
  • To make your arm, leg muscles long to ease them
  • To make something bigger by pulling on it

each

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US / i:tʃ /

UK / itʃ /

A1
  • determiner
  • Every one of two or more things
  • pronoun
  • Per one person or thing

satellite

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US / 'sætəlaɪt /

UK / ˈsætlˌaɪt /

B1
  • noun
  • Device sent into space that aids communication
  • Natural object in space that moves around another
  • Area controlled by another group or country

ghost

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US / gəʊst /

UK / goʊst /

B1
  • noun
  • Bad effects, memories, and feelings from the past
  • Spirit of a dead person, appearing to the living
  • verb
  • To write a book on behalf of another person

the

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US / ðə /

UK / ðə /

A1
  • article
  • Used to refer to something already mentioned
  • Used to show there is only one of something
  • determiner
  • Used to describe all of a family

unfortunately

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US / ʌnˈfɔ:tʃənətli /

UK / ʌnˈfɔːrtʃənətli /

B1
  • adverb
  • In a way that is to be regretted; unluckily

body

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US / ˈbɒd.i /

UK / ˈbɑdi /

A1
  • noun
  • An object distinct from other objects
  • A group of people involved in an activity together
  • Main part of something
  • A person's physical self

average

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US / 'ævərɪdʒ /

UK / ˈævərɪdʒ, ˈævrɪdʒ /

A2
  • adjecitve
  • Typical or normal; usual; ordinary
  • noun
  • Total of numbers divided by the number of items
  • verb
  • To add numbers then divide by the number of items

method

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US / 'meθəd /

UK / ˈmɛθəd /

A2
  • noun
  • (Organized and planned) way of doing something

happen

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US / 'hæpən /

UK / ˈhæpən /

A1
  • verb
  • To take place or occur

track

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US / træk /

UK / træk /

A2
  • noun
  • A circular course for running
  • Course or way someone takes, e.g. in education
  • Path in a field or a forest made by walkers
  • Often circular course laid out for car racing
  • One of multiple musical recordings on an album
  • Band surrounding the wheels of a tank
  • Metal lines that trains ride on
  • verb
  • To use marks to follow a wild animal
  • To move a certain way/follow a particular course
  • To record and examine the progress of something

down

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US / daʊn /

UK / daʊn /

A1
  • adjecitve
  • Being sad, sick, or unhappy
  • Not operating, working, or functioning as expected
  • adverb
  • In a sitting or lying position
  • Towards or on the ground, floor, or bottom
  • Written or copied onto a piece of paper or book
  • noun
  • A period of play in American Football
  • The soft, smooth hairs that cover a bird's body
  • preposition
  • Along something's path, course, or direction
  • Going from a higher position to a lower position
  • verb
  • To eat or drink very quickly and without stopping

gravitationally

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US / /

UK / /

A1
  • other
  • With respect to gravitation

force

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US / fɔ:s /

UK / fɔrs, fors /

A1
  • noun
  • Group of persons trained for military action; army
  • Pressure; attraction
  • The use of physical strength/violence to persuade
  • verb
  • To use physical strength or violence to persuade

step

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US / step /

UK / stɛp /

A1
  • noun
  • Movement done as part of a particular dance
  • Distance covered by one movement of a leg; stride
  • One part or stage in a process
  • Sound made by the feet while walking; footstep
  • Flat horizontal piece that forms stairs
  • verb
  • To raise and moving the foot to put it down

then

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US / ðen /

UK / ðɛn /

A1
  • adverb
  • A time that is not now
  • Following another thing in time or arrangement
  • Following on reasonably from what was just stated
  • At that time, not now

below

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US / bɪ'ləʊ /

UK / bɪˈlo /

A1
  • preposition
  • In a lower position, place, or level

bunch

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US / bʌntʃ /

UK / bʌntʃ /

B1
  • noun
  • A group of things of the same kind
  • verb
  • To group people or things closely together
  • (Cloth) to gather/be gathered together in folds

make

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US / meɪk /

UK / mek /

A1
  • noun
  • Product made by a particular company; brand
  • verb
  • To arrange or prepare something e.g. dinner
  • To get to (a place) on time
  • To gain the status of (teacher, lawyer, etc.)
  • To create something by putting things together
  • To earn a certain amount of money at a job
  • To cause or force a person to do something
  • To cause something to happen or be formed

catch

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US / kætʃ /

UK / kætʃ, kɛtʃ /

A1
  • noun
  • Amount of something that has been caught
  • Trick or something trying to deceive
  • verb
  • To stop something flying and hold it
  • To stop something and not let it go, e.g. animals
  • To get sick or get a disease from someone else
  • To find someone to do something, a task
  • To get stuck on or in something
  • To be trapped so you can’t escape
  • To be able to understand what someone is saying

inner

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US / ˈɪnə(r) /

UK / ˈɪnɚ /

A1
  • adjecitve
  • Concerning the inside part of something

number

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US / ˈnʌmbə(r) /

UK / ˈnʌmbɚ /

A1
  • noun
  • Symbols such as 1, 2, 56, 793
  • Particular song or dance performed during a show
  • Total quantity or amount of things
  • verb
  • To put numbers on things
  • To assign a sequence within a group, series, set
  • To claim to be part of a larger group, series, set

path

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US / pɑ:θ /

UK / pæθ, pɑθ /

A2
  • noun
  • Method of living leading to a particular result
  • Track made with stones, by walking over the ground

exurb

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US / ˈeksɜːb /

UK / /

A1
  • noun

jupiter

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US / ˈdʒu:pɪtə(r) /

UK / ˈdʒupɪtɚ /

A1
  • proper noun
  • The largest planet in the solar system, a gas giant which is the fifth in order from the sun and one
  • The chief god of the Roman state religion, originally a sky god associated with thunder and lightnin

offline

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US / ˌɒfˈlaɪn /

UK / ˌɔːfˈlaɪn /

A1
  • adjecitve
  • Not connected to a central computer or computer network

outside

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US / ˌaʊtˈsaɪd /

UK / aʊtˈsaɪd, ˈaʊtˌsaɪd /

A2
  • adverb
  • Beyond the limits or edges of some place, thing
  • noun
  • Area around or near something, such as a building
  • preposition
  • Beyond the limits or edges of some place, thing

run

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US / rʌn /

UK / rʌn /

A1
  • noun
  • Journey between two places made by ship or car
  • Series of similar things or successes and failures
  • Act of running; exercise of running
  • verb
  • To depart or travel according to a schedule
  • To cause an animal to move in a certain direction
  • (Of an engine) to be operating
  • To start or use a computer program
  • To flow in a certain direction, like a liquid
  • To manage or operate a business
  • To operate or drive something
  • (Of a road) to go from one place to another
  • To move your legs faster than walking

suggest

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US / səˈdʒest /

UK / səɡˈdʒɛst, səˈdʒɛst /

A1
  • verb
  • To mention something that could be done; propose

free

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US / fri: /

UK / fri /

A1
  • adjecitve
  • Living, happening without being controlled
  • Costing no money
  • Not working; not busy
  • verb
  • To release (e.g. bird) from a cage or prison

may

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US / meɪ /

UK / me /

A1
  • noun
  • 5th month of the year
  • other
  • Used to express a desire
  • Expresses permission, possibility or probability
  • Used to show that a thing could be true

subscription

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US / səbˈskrɪpʃn /

UK / səbˈskrɪpʃən /

B1
  • noun
  • Regular payment for a service, magazine etc.

this

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US / ðɪs /

UK / ðɪs /

A1
  • adjecitve
  • Used to indicate something already been discussed
  • Used to indicate something happening around now
  • adverb
  • An indication by a physical motion or gesture
  • A specific amount of
  • determiner
  • Person, thing, or idea near you
  • pronoun
  • Person, thing that has already been discussed

word

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US / wɜ:d /

UK / wɚd /

A1
  • noun
  • Unit of language that has a meaning
  • Promise
  • Short remark or piece of information
  • verb
  • To express something by choosing particular words

eject

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US / ɪ'dʒekt /

UK / ɪ'dʒekt /

B2
  • verb
  • To make a disc or tape come out of a machine
  • To throw someone out; force someone to leave

proxima

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US / /

UK / /

A1
  • other
  • Nearest star to the sun; distance: . light years

click

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US / klɪk /

UK / klɪk /

A1
  • noun
  • The sound a computer mouse makes when you press it
  • A short, slight, and sharp sound
  • verb
  • To work well with someone or something
  • To press a computer mouse
  • To make a short, slight, and sharp sound

comet

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US / ˈkɒmɪt /

UK / ˈkɑ:mət /

B2
  • noun
  • Moving object in space, with a long, bright tail

dim

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US / dɪm /

UK / dɪm /

B1
  • adjecitve
  • Not bright; not being clear
  • Not intelligent; a bit stupid or slow
  • Not likely to be good or successful
  • Unlikely
  • (Of memories) vague or unclear
  • verb
  • To reduce the brightness of a light

giant

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US / 'dʒaɪənt /

UK / ˈdʒaɪənt /

A2
  • adjecitve
  • Very large, or much bigger than other things
  • noun
  • Tall, large, and powerful human-like creatures
  • Very successful, powerful person or organization

entire

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US / ɪn'taɪə(r) /

UK / ɛnˈtaɪr /

A2
  • adjecitve
  • Complete or full; with no part left out; whole

into

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US / 'ɪntə /

UK / ˈɪntu /

A1
  • preposition
  • Moving or going inside something
  • In the same direction as; in the direction of
  • So as to become; taking the state of

other

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US / 'ʌðə(r) /

UK / ˈʌðər /

A1
  • adjecitve
  • A thing different from that mentioned
  • determiner
  • (Something) else; not the first (one)
  • pronoun
  • Being the one and only thing of that category

relative

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US / ˈrelətɪv /

UK / ˈrɛlətɪv /

A2
  • adjecitve
  • Measured or considered in comparison to another
  • (Grammar) referring to words that appear earlier
  • noun
  • Members of the family
  • Humans or animals sharing the same family history

oblong

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US / ˈɒblɒŋ /

UK / ˈɑ:blɔ:ŋ /

C1
  • adjecitve
  • (Of a shape) having four straight sides

settle

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US / 'setl /

UK / ˈsɛtl /

A2
  • noun
  • Type of wooden seat
  • verb
  • To make (a child, etc.) feel calm/ready for sleep
  • To complete or finalize e.g. a contract or debt
  • To end some troubles by reaching an agreement
  • To become accustomed to a new environment
  • (Of liquids) to move to the bottom of a container

one

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US / wʌn /

UK / wʌn /

A1
  • pronoun
  • You; we; people in general; someone
  • The thing or person previously referred to
  • adjecitve
  • Used to refer to people generally
  • Being a strong example of (something mentioned)
  • number
  • Number 1

rock

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US / rɒk /

UK / rɑk /

A1
  • noun
  • Type of popular music with a strong, loud beat
  • Strong, tough person who can be relied upon
  • Big stone; hard, solid substance forming mountains
  • verb
  • To be greatly upset by something, e.g. a death
  • To be extremely effective or pleasing
  • To play, sing along with, or dance to heavy music
  • To move back and forth or from side to side

than

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US / ðən /

UK / ðən /

A1
  • conjunction
  • Used to compare two things that are not equal

turn

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US / tɜ:n /

UK / tɚn /

A1
  • noun
  • Place where changing of direction happens
  • Your time or chance to perform a duty
  • Your chance to play or do in say a game
  • Unexpected change, as in the weather
  • verb
  • To become (a particular age)
  • To become a different quality, color, etc.
  • To change the direction of something, e.g. a car
  • To move in an opposite direction or position
  • To shape metal with a spinning tool

not

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US / nɒt /

UK / nɑt /

A1
  • adverb
  • Word indicating the negative
  • (Used to form the negative of verbs)

our

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US / 'aʊə(r) /

UK / aʊr /

A1
  • determiner
  • Belonging to us

quite

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US / kwaɪt /

UK / kwaɪt /

A1
  • adverb
  • Not very; fairly
  • Very; In a complete or total manner

currently

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US / ˈkʌrəntli /

UK / ˈkʌrənt(ə)li /

A2
  • adverb
  • Happening or being in the present time

expect

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US / ɪk'spekt /

UK / ɪkˈspɛkt /

A1
  • verb
  • To believe something is probably going to happen

internet

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US / ˈɪn.tə.net /

UK / ˋɪntɚ͵nɛt /

A1
  • noun
  • Worldwide computer network system

online

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US / ˌɒnˈlaɪn /

UK / ˌɑ:nˈlaɪn /

B1
  • adjecitve
  • Connected to the internet

want

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US / wɔnt /

UK / wɑnt, wɔnt /

A1
  • noun
  • Something you desire or wish for
  • State or condition of poverty
  • verb
  • To desire or wish for something; hope for a thing

video

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US / 'vɪdɪəʊ /

UK / ˈvɪdiˌo /

A2
  • adjecitve
  • Of a moving film, with sound
  • noun
  • Recording capturing action with sound
  • verb
  • To make a moving film of, with sound

now

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US / naʊ /

UK / naʊ /

A1
  • adverb
  • At the present time or moment
  • Right away or in the next possible moment
  • Used to refer to something that just happened
  • Time between the present and a moment in the past
  • conjunction
  • Resulting from or because of something

planet

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US / 'plænɪt /

UK / ˈplænɪt /

A2
  • noun
  • One of the bodies that orbit the sun

likelihood

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US / ˈlaɪklihʊd /

UK / ˈlaɪkliˌhʊd /

B1
  • noun
  • Chance that something might happen

survey

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US / 'sɜ:veɪ /

UK / ˈsɜː(r)veɪ /

A2
  • noun
  • Broad view or general description of something
  • Act of measuring land or property to make a map
  • Set of questions used to ask people about a topic
  • verb
  • To offer a broad view or general description
  • To measure an area of land to make a map of it
  • To ask people a question about a particular topic

trial

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US / ˈtraɪəl /

UK / ˈtraɪəl, traɪl /

A2
  • adjecitve
  • Being made or done as a test or experiment
  • noun
  • Hearing and judgment of a case in court
  • Act or process of testing or experimenting
  • verb
  • To be made or done as a test or experiment

advantage

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US / əd'vɑ:ntɪdʒ /

UK / ædˈvæntɪdʒ /

A2
  • noun
  • Thing making the chance of success higher
  • A positive point about something

can

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US / kæn /

UK / kən,kæn /

A1
  • noun
  • A metal container for storing food
  • other
  • Able to; have the skill to; have the time to
  • verb
  • To have permission to
  • To be possible to do
  • To preserve food by sealing it in a metal container

cloud

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US / klaʊd /

UK / klaʊd /

A1
  • noun
  • A mass of smoke or mist hanging in the air
  • verb
  • To confuse the mind/judgment of a person
  • (Of the sky) to get darker and fill with clouds
  • To make (glass, etc.) difficult to see through
  • To make an activity less pleasant or enjoyable
  • (Of person's face, etc.) to show worry/anger

description

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US / dɪˈskrɪpʃn /

UK / dɪˈskrɪpʃən /

A2
  • noun
  • Explanation of what something is like, looks like

observational

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US / ˌɒbzəˈveɪʃənl /

UK / ˌɑːbzərˈveɪʃənl /

B1
  • adjecitve
  • Concerning observing, or watching and waiting

support

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US / səˈpɔ:t /

UK / səˈpɔrt, -ˈport /

A1
  • noun
  • Assistance or advice given to someone
  • Evidence that helps prove something is true
  • A thing to hold up or prevent from falling down
  • verb
  • To give assistance or advice to someone
  • To help prove or show that something is true
  • To hold up or prevent from falling down

halfway

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US / ˌhɑ:fˈweɪ /

UK / ˌhæfˈweɪ /

B2
  • adverb
  • A middle point between two extremes

nearly

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US / ˈniəli /

UK / ˈnɪrli /

A1
  • adverb
  • Not completely; almost

recent

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US / 'ri:snt /

UK / ˈrisənt /

A1
  • adjecitve
  • Happening or beginning not long ago

telescope

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US / ˈtelɪskəʊp /

UK / ˈtelɪskoʊp /

C2
  • noun
  • Tube-shaped device used to see a great distance
  • verb
  • To shorten by compacting tubes inside each other

brilliant

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US / 'brɪlɪənt /

UK / ˈbrɪljənt /

A2
  • adjecitve
  • Having a great amount of intelligence or talent
  • Being very bright, like a diamond; shining

neck

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US / nek /

UK / nɛk /

A2
  • noun
  • Part of the body joining the head and the body
  • Opening of a piece of clothing for your head
  • verb
  • (Lovers) to play affectionately; kissing

really

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US / ˈri:əli /

UK / ˈriəˌli, ˈrili /

A1
  • adverb
  • Used to stress something that is said; definitely
  • In a true or accurate manner
  • Very

would

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US / wʊd /

UK / wʊd /

A1
  • other
  • Used to indicate something imagined
  • Used to ask or request something politely
  • Verb used to indicate possibility, request etc.
  • Used to indicate a preference
  • Used to indicate a reaction
  • Indicates something that occurred repeatedly
  • Used to indicate willingness or ability to do

platform

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US / 'plætfɔ:m /

UK / ˈplætˌfɔrm /

B1
  • noun
  • Flat, raised structure that people stand on
  • Area from which you board a train at a station
  • Subtitles section
  • Thanks to Brilliant for supporting this SciShow video.
  • As a SciShow viewer, you can keep building your STEM skills with a 30-day free trial and 20% off an annual Premium subscription at Brilliant.org slash SciShow.
  • You know, back in my day, there were nine planets in the solar system.
  • Okay, it depends on how old you are now.
  • But back in 2006, astronomers reclassified Pluto as a dwarf planet.
  • It was a bit of a bummer, but not the end of the story.
  • Because it turns out there may be genuine planets, I'm talking larger than the Earth, that are hiding in our solar system's boonies.
  • And you heard me right.
  • I said planets, plural.
  • Even after Pluto's demotion, our solar system might have ten of them.
  • Pluto, as well as a few other dwarf planets, orbit the Sun in a giant puffed-up disk of rocky leftovers known as the Kuiper Belt.
  • But in the 2010s, astronomers noticed something weird was going on.
  • Some of the Kuiper Belt rocks they'd been tracking had orbits that looked a bit off-center.
  • And to explain it, they proposed there was a hidden planet out there, roughly five to ten times the mass of the Earth, whose gravity was to blame.
  • Its placeholder name is Planet 9, and based on computer simulations, it doesn't live in the Kuiper Belt.
  • In fact, its orbit is roughly ten times further out.
  • To put some actual numbers on these distances, the Kuiper Belt starts at about Neptune's orbit, thirty astronomical units from the center of our solar system, and ends at about fifty astronomical units.
  • An astronomical unit, or AU, is the average distance between the Sun and the Earth, or 150 million kilometers, give or take.
  • Meanwhile, Planet 9's proposed orbit only takes it as close as 270 AU, and it gets as far as 820 AU. Each year would be between 10,000 and 20,000 Earth years long.
  • But despite that distance, it's massive enough to gravitationally tweak the path some Kuiper Belt rocks take around the Sun.
  • Again, this is assuming Planet 9 really does exist.
  • Before anyone announces our solar system is back to having nine planets, we need direct observational evidence that Planet 9 is out there.
  • And unfortunately, recent surveys that might have had the capability to spot it have come up empty.
  • But while the jury is still out on Planet 9, other astronomers have started thinking a bit farther out.
  • Technically, the Oort Cloud is hypothetical just like Planet 9 is.
  • We don't actually have any direct visual evidence that it's out there.
  • Because just like Planet 9, it's so far away that it's super dim.
  • But ever since the 1950s, astronomers have expected what we normally think of as the solar system to be encased in a giant sphere of icy space rocks.
  • Some of those rocks are actually comets, which we only spot while they're in our neck of the woods and nowhere near the actual Oort Cloud.
  • If you think about the Kuiper Belt as our solar system's suburbs, and Planet 9 is kicking in the exurbs, then the Oort Cloud is in the absolute boonies, the middle of nowhere.
  • The inner edge might start at about 2,000 AU, and the outer edge could stretch halfway to Proxima Centauri, the next star over.
  • The reason the Oort Cloud exists is because solar system formation can get messy.
  • There's a lot going on when you take a humongous cloud of gas and dust and collapse it into a baby star with a bunch of growing planets.
  • Huge amounts of mass get moving really quickly and clump together in strange ways.
  • Wherever you've got mass, you've got gravitational tugging.
  • And sometimes with too much gravitational tugging from the wrong body, ahem, Jupiter, you can kick an entire planet completely out of the solar system.
  • These are rogue planets, and research announced in 2023 suggests there are more rogues out there than planets bound to a star.
  • But not all bodies will have that much energy.
  • They'll get flung farther away from where they started, but merely settle into a very distant orbit around their star.
  • In other words, they'll wind up in the Oort Cloud.
  • The question is, could that happen to a body massive enough for us to call a planet?
  • And more specifically, could there be some kind of Planet 10 orbiting the Sun thousands of AU away?
  • Well, in 2023, a few astronomers published some simulations that investigated just that.
  • Unlike most previous research, their models took into account the fact that forces outside the solar system have an influence on what happens inside.
  • So some bodies that were getting completely ejected from their solar system in previous models would merely get stuck in the Oort Cloud instead.
  • And by running a bunch of simulations, they calculated the likelihood that an ice giant — something similar to Uranus or Neptune — could get ejected from the inner solar system and live out the rest of its days in Oort Cloud exile.
  • Apparently, that likelihood is about 7%. So not likely, but not impossible.
  • And to be clear, the case for Planet 10 is also more speculative than Planet 9. The team just wanted to see if a planet could hypothetically wind up out there.
  • For these potential planets, the next step is actually looking for them to see if either, or maybe even both, exist.
  • But that will prove tricky.
  • It's a bit ironic.
  • If either of these planets were orbiting a star many light-years away, we might have a chance of spotting it.
  • In our own solar system, the task is really difficult for Planet 9, and nearly impossible for Planet 10 in the Oort Cloud.
  • Because they're in our own solar system, they won't pass between us and the Sun, so we can't observe a change in the star's light.
  • That's the transit method that satellites like Kepler have used to discover thousands of exoplanets.
  • And they're so dim and far away that taking a picture, direct observation, will be tricky.
  • Not impossible, according to some researchers, but tricky.
  • Plus, both planets would likely have very oblong orbits that are super-tilted relative to Earth's.
  • And we don't have solid numbers on exactly how oblong or how tilted.
  • That makes pointing your telescope in the right direction to spot them really, really hard.
  • Our only hope would be a technique called gravitational microlensing, which is currently being used to find those rogue planets in between star systems.
  • The technique takes advantage of the fact that a planet, while passing in front of a background star, will bend and magnify that starlight.
  • Even if we can't see the planet, we can catch that brief flash of light and know something of a certain mass made it happen.
  • Between a ghost planet 9 and a possible but unlikely planet 10, our conception of our solar system may change someday if we can find these things, which on the one hand is pretty fun to think about.
  • But on the other hand, get off my lawn with your newfangled hypothetical planets and come back when you've got some cold, hard proof!
  • This SciShow video is supported by Brilliant, an online learning platform with thousands of interactive lessons in math, science, and computer science.
  • Like their course in 3D Geometry that teaches you how to find the shortest distance through 3D space.
  • That course could even help you contextualize how far away these extra planets are.
  • And if you ever find yourself visiting those planets where the internet connection isn't quite as strong, you can take Brilliant courses along for the ride because they're available offline using the iOS and Android app.
  • To get started, you can visit Brilliant.org slash SciShow or click the link in the description down below.
  • That link also gives you a free 30-day trial and 20% off an annual Premium Brilliant subscription.
  • Thanks for watching this SciShow video.