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Should We Save Northern White Rhinos?

Video vocabulary

highlight

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US / ˈhaɪlaɪt /

UK / ˈhaɪˌlaɪt /

A2
  • noun
  • Best or most interesting part of something
  • Spot or section lighter than the area around it
  • verb
  • To use chemicals to make some hair a lighter color
  • To make people aware of a problem, subject, issue
  • To focus particular attention on; draw attention
  • To use a pen to mark places of interest in a book

regard

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US / rɪ'ɡɑ:d /

UK / rɪˈɡɑrd /

A2
  • noun
  • Admiration or respect for a person or thing
  • verb
  • To think about a person, thing in a particular way
  • To look at a person or thing in a particular way

solution

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US / səˈlu:ʃn /

UK / səˈluʃən /

A2
  • noun
  • Mix of a liquid and a solid or a gas
  • Way to solve or deal with a problem

sperm

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US / spɜ:m /

UK / spə:m /

C2
  • noun
  • Cell produced by men and needed for reproduction

big

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US / bɪɡ /

UK / bɪɡ /

A1
  • adjecitve
  • Popular
  • Serious
  • Large

let

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US / let /

UK / lɛt /

A1
  • verb
  • To allow someone to do something
  • Introducing a suggestion to do something together
  • To rent a house, etc. to others

material

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US / məˈtɪəriəl /

UK / məˈtɪriəl /

A2
  • adjecitve
  • Relevant; (of evidence) important or significant
  • Belonging to the world of physical things
  • noun
  • Cloth; fabric
  • Supplies or data needed to do a certain thing
  • Substance from which a thing is made of

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

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

frozen

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US / 'frəʊzn /

UK / ˈfroʊzn /

A2
  • adjecitve
  • Hard, solid because it is below zero degrees
  • verb
  • To store an item of food in a cold place
  • To make someone to not want to communicate
  • To stop moving and be still; stay the same

genetic

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US / dʒəˈnetɪk /

UK / dʒəˈnɛtɪk /

B1
  • adjecitve
  • Of, relating to, or controlled by genes

teach

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US / ti:tʃ /

UK / titʃ /

A1
  • verb
  • To help someone learn or do something

wildlife

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US / ˈwaɪldlaɪf /

UK / ˈwaɪldˌlaɪf /

B1
  • noun
  • All wild animals

truly

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US / 'tru:lɪ /

UK / ˈtruli /

A2
  • adverb
  • In accordance with truth, fact or reality; really

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

endometriosis

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US / ˌendəʊˌmi:trɪ'əʊsɪs /

UK / ˌendoʊˌmi:trɪ'oʊsɪs /

A1
  • noun
  • Presence of endometrium elsewhere than in the lining of the uterus; causes premenstrual pain and dys

order

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US / 'ɔ:də(r) /

UK / ˈɔrdɚ /

A1
  • noun
  • Religious or social group, as of nuns
  • Instructions to others to do what you want
  • State in which things are neat and organized
  • What you ask to buy, e.g. food in restaurant
  • Social or political control of an area
  • verb
  • To put things in a sequence, e.g. a, b, c
  • To give instructions to others to do what you want
  • To ask for something you want to buy, e.g. a meal

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

able

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US / 'eɪbl /

UK / ˈebəl /

A2
  • adjecitve
  • Skilled; good at something
  • Having the ability to do something

fertilize

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US / ˈfɜ:təlaɪz /

UK / ˈfɜ:rtəlaɪz /

B1
  • verb
  • To make pregnant; to put sperm in an egg
  • To add chemicals to produce larger, better plants

term

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US / tɜ:m /

UK / tɚm /

A1
  • noun
  • Conditions applying to an agreement, contract
  • Length of time something is expected to happen
  • Fixed period of weeks for learning at school
  • The (precise) name given to something
  • verb
  • To call; give a name to

three

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US / θri: /

UK / θri /

A1
  • number
  • Number 3

assumption

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US / ə'sʌmpʃn /

UK / əˈsʌmpʃən /

A2
  • noun
  • Something you believe to be so, but aren't sure of

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

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

infertile

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US / ɪnˈfɜ:tl /

UK / ɪnˈfə:tl /

B1
  • adjecitve
  • Being unable to have children or reproduce

sister

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US / ðə /

UK / ðə /

A1
  • noun
  • Female you share a parent with
  • Full-time female member of a (Christian) religion

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

also

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US / 'ɔ:lsəʊ /

UK / ˈɔlso /

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

female

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US / 'fi:meɪl /

UK / ˈfiˌmel /

A2
  • adjecitve
  • Person of the sex that gives birth to babies

january

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US / ˈdʒænjuəri /

UK / ˈdʒænjueri /

A1
  • noun
  • 1st month of the year

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

donor

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US / ˈdəʊnə(r) /

UK / ˈdoʊnə(r) /

B1
  • noun
  • Someone giving money or gifts to support a cause

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

ionize

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US / ˈaɪənaɪz /

UK / ˈaɪənaɪz /

A1
  • verb
  • To cause something to become an ion by adding or removing electrons

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

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

respond

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US / rɪ'spɒnd /

UK / rɪˈspɑnd /

A2
  • verb
  • To answer something or someone
  • To have a good reaction to e.g. medical treatment

science

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US / 'saɪəns /

UK / ˈsaɪəns /

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

should

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US / ʃʊd /

UK / ʃʊd /

A1
  • other
  • Used to indicate what is proper or reasonable

white

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US / waɪt /

UK / hwaɪt, waɪt /

A1
  • adjecitve
  • Belonging to a race of people with light skin
  • Of the color of fresh snow and milk
  • noun
  • Person's name
  • Lightest color; The color of fresh snow.

fairly

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US / 'feəlɪ /

UK / ˈfɛrli /

A2
  • adverb
  • Quite; pretty; between very and a little
  • In a manner that is right and acceptable

healthy

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US / ˈhelθi /

UK / ˈhɛlθi /

A1
  • adjecitve
  • In good condition physically, or financially; well

past

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US / pɑ:st /

UK / pæst /

A2
  • adjecitve
  • No longer current or new
  • adverb
  • So as to go beyond, or further than something
  • noun
  • Time that existed before now, e.g. long ago
  • preposition
  • After a particular time
  • At a later point in distance; beyond

procedure

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US / prəˈsi:dʒə(r) /

UK / prəˈsidʒɚ /

B1
  • noun
  • A medical operation
  • Usual or standard steps taken to do something

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

reproductive

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US / ˌri:prəˈdʌktɪv /

UK / ˌriprəˈdʌktɪv /

B1
  • adjecitve
  • Concerning the process of making children
  • Relating to having children, young, or new plants

side

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US / saɪd /

UK / saɪd /

A1
  • adjecitve
  • In addition to the central or most important thing
  • Next to, or very close to, the right or left of
  • noun
  • Position or opinion that is opposite to another
  • Right or left part of a person's body
  • Feature of someone's personality
  • Straight edge of an object
  • One of two or more groups fighting each other
  • verb
  • To decide to agree with one point, not the other

too

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US / tu: /

UK / tu /

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

wheel

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US / wi:l /

UK / wi:l /

A2
  • noun
  • Round thing that rolls, used for moving things
  • verb
  • To move something which has wheels or is on wheels
  • To turn or cause to turn something in a circle

episode

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US / 'epɪsəʊd /

UK / ˈɛpɪˌsod /

B1
  • noun
  • One separate event in a series of events
  • Show which is part of a larger story

itself

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US / ɪtˈself /

UK / ɪtˈsɛlf /

A1
  • pronoun
  • Referring to it

relate

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US / rɪ'leɪt /

UK / rɪˈlet /

A2
  • verb
  • To demonstrate a logical relationship between
  • To understand or sympathize with, e.g. a problem
  • To tell a story, or tell about a particular event

thousand

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US / ˈθaʊznd /

UK / ˈθaʊzənd /

A1
  • number
  • Number 1,000

wild

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US / waɪld /

UK / waɪld /

A2
  • adjecitve
  • Living in nature; not tame
  • (Of land) not developed by people
  • adverb
  • In a manner which lacks control
  • noun
  • A natural environment e.g. jungle, forest

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

breakthrough

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US / 'breɪkθru: /

UK / ˈbrekˌθru /

B2
  • noun
  • Important discovery in doing something difficult

habitat

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US / 'hæbɪtæt /

UK / ˈhæbɪˌtæt /

B1
  • noun
  • Natural place where a plant or animal lives

matter

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US / 'mætə(r) /

UK / ˈmætɚ /

A1
  • noun
  • Material all things are made of that fills space
  • Problem or reason for concern
  • verb
  • To be of great importance; to count

once

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US / wʌns /

UK / wʌns /

A1
  • adverb
  • One time; one instance
  • At a time in the past
  • conjunction
  • When; as soon as

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

probably

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US / ˈprɒbəbli /

UK / ˈprɑbəbli /

A1
  • adverb
  • That is likely to happen or be true

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

actually

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US / ˈæktʃuəli /

UK / ˈæktʃuəli /

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

herd

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US / hɜ:d /

UK / hɜ:rd /

B2
  • noun
  • Group of the same animal that eat, live together
  • Group of people who are easily influenced
  • verb
  • To gather animals together to move them
  • To come together into a group

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

calf

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US / kɑ:f /

UK / kæf /

B2
  • noun
  • Young cow
  • Back of the leg just below the knee

ivf

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US / ˌaɪ viː ˈef /

UK / ˌaɪ viː ˈef /

A1
  • abbreviation
  • IVF is an acronym

population

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US / ˌpɒpjuˈleɪʃn /

UK / ˌpɑpjəˈleʃən /

A2
  • noun
  • Number of people who live in a country, area etc.

true

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US / tru: /

UK / tru: /

A1
  • adjecitve
  • Agreeing with the facts; not false; real or actual

ever

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US / 'evə(r) /

UK / ˈɛvɚ /

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

embryo

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US / ˈembriəʊ /

UK / ˈɛmbriˌo /

B2
  • noun
  • Tiny plant stored inside a seed
  • Early form of an unborn human or animal

gene

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US / dʒi:n /

UK / dʒin /

B1
  • noun
  • Part of cell controlling development of a thing

jessi

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US / ˈdʒesi /

UK / ˈdʒɛsi /

A1

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

third

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US / θɜ:d /

UK / θɜ:rd /

A1
  • adjecitve
  • 3rd: Number after second

viable

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US / ˈvaɪəbl /

UK / ˈvaɪəbəl /

B1
  • adjecitve
  • Being capable of living, growing, and developing

sure

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US / ʃʊə(r) /

UK / ʃʊr /

A1
  • adjecitve
  • Having no doubts about something
  • Have confidence in your own words or actions
  • Firmly established or held; being firm or stable
  • Being correct or true
  • adverb
  • What you say to agree willingly

surrogate

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US / ˈsʌrəgət /

UK / ˈsɜ:rəgət /

B2
  • adjecitve
  • Appointed; used in the place of another
  • noun
  • Person appointed in the place of another

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

complicate

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US / ˈkɒmplɪkeɪt /

UK / ˈkɑ:mplɪkeɪt /

B1
  • verb
  • To make more difficult to do, understand or use

freezer

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US / ˈfri:zə(r) /

UK / ˈfrizɚ /

B1
  • noun
  • Electric refrigerator operating below zero degrees

here

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US / hɪə(r) /

UK / hɪr /

A1
  • adverb
  • In this place; at this location, position or time

new

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US / nju: /

UK / nu, nju /

A1
  • adjecitve
  • Not old, recently born, built or made
  • Being or doing something for the first time
  • Not felt, seen or known previously
  • Having been recently bought or obtained

position

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US / pəˈzɪʃn /

UK / pəˈzɪʃən /

A1
  • noun
  • Person's opinion or attitude about something
  • Specific location where someone or something is
  • Where you play or your role on a sports team
  • Person's job or status level
  • Set of conditions affecting what you can (not) do
  • verb
  • To put in a particular location or direction

small

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US / smɔ:l /

UK / smɔl /

A1
  • adjecitve
  • Little in size; not big
  • (Of letters) not written in capital letters
  • Being insignificant or minor
  • (Of a business) with few people or things; local
  • (Of voice) being soft and quiet
  • (Of a child) being young

tool

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US / tu:l /

UK / tul /

A2
  • noun
  • Device used to make things, e.g. a hammer
  • verb
  • To provide a workshop with the right equipment

try

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US / traɪ /

UK / traɪ /

A1
  • noun
  • Act of putting the ball over the rugby goal line
  • verb
  • To make an effort, to attempt to do something
  • To examine someone or something in a court of law
  • To test to see if it is good or you like it
  • To make a person go through hardship; test
  • To examine something to see if it works

everyday

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US / ˈevrideɪ /

UK / ˈɛvriˈde /

A1
  • adjecitve
  • Used or seen daily; for daily use; ordinary

mind

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US / maɪnd /

UK / maɪnd /

A1
  • noun
  • One's opinion or way of thinking about something
  • Part of humans that allows us to think or feel
  • verb
  • To be bothered or upset by something
  • To take care of someone e.g. as a bodyguard

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

induce

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US / ɪn'dju:s /

UK / ɪnˈdus, -ˈdjus /

B1
  • verb
  • To make someone do something; create an outcome
  • To make a woman give birth by giving her medicine

problem

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US / ˈprɒbləm /

UK / ˈprɑbləm /

A1
  • adjecitve
  • Causing trouble
  • noun
  • Something difficult to deal with or causes trouble
  • Question to show understanding of a math concept

quickly

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US / ˈkwɪkli /

UK / ˈkwɪklɪ /

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

raise

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US / reɪz /

UK / rez /

A1
  • noun
  • Increase in a bet above another when playing cards
  • Pay increase
  • verb
  • To increase a bet above another when playing cards
  • To gather donations for a cause or charity
  • To bring up and educate a child to maturity
  • To bring a dead person to life
  • To increase a quantity, size, intensity or price
  • To lift (e.g. your hand) to a higher position
  • To mention a topic /issue for discussion; bring up
  • To increase (salary, etc.)
  • To grow or care for plants or animals

poach

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US / pəʊtʃ /

UK / poʊtʃ /

B1
  • verb
  • To cook something gently in boiling liquid
  • To catch or kill animals on prohibited land

scientist

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US / ˈsaɪəntɪst /

UK / ˈsaɪəntɪst /

A2
  • noun
  • Person who is trained in a science

adventure

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US / əd'ventʃə(r) /

UK / ædˈvɛntʃɚ /

A1
  • noun
  • An exciting and often dangerous experience
  • verb
  • To have an exciting or dangerous experience

break

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US / breɪk /

UK / brek /

A1
  • noun
  • Time you stop an activity before continuing
  • End of a relationship
  • An escape from a place such as a jail
  • (Lucky) advantage or benefit from something
  • Find a solution or answer to a problem or crime
  • Change in the weather
  • verb
  • To create a new record e.g. running the 100m dash
  • To form a crack in something
  • To burst or become damaged
  • To end a relationship
  • To escape from a place such as a jail
  • To train a wild animal e.g. a horse
  • To separate into pieces by force, or by dropping
  • To act against a law, rule, or promise
  • To become known suddenly, as in the news
  • To not do what you promised e.g. not keep promises
  • To solve a crime, or answer a problem
  • To stop functioning properly
  • To suddenly start, open or commence
  • To change in pitch suddenly, as in a voice
  • To fall on the shore, as in waves
  • To begin or change suddenly; the dawn or weather
  • To defeat by causing the person to lose their will

educator

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US / ˈedʒukeɪtə(r) /

UK / ˈɛdʒəˌketɚ /

A2
  • noun
  • Someone who teaches

recycle

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US / ˌri:'saɪkl /

UK / riˈsaɪkəl /

A2
  • verb
  • To use old ideas or concepts again
  • To send used things to be turned into new things

weak

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US / wi:k /

UK / wik /

A1
  • adjecitve
  • Not having a strong character
  • Less valuable compared to money of other countries
  • Ineffective; unconvincing; not strong
  • Having little power or ability
  • Not having the necessary or proper amount
  • Having little power; not strong; easy to break
  • (Of a drink) having lots of water and little taste

widespread

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US / ˈwaɪdspred /

UK / ˈwaɪdˈsprɛd /

A2
  • adjecitve
  • Happening or existing in many places

blank

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US / blæŋk /

UK / blæŋk /

A2
  • verb
  • To make empty
  • To cause a memory to be erased
  • adjecitve
  • Showing no emotion or understanding
  • Being empty; not filled out; with no writing on it
  • noun
  • Empty space on a form which you fill in

curiosity

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US / ˌkjʊərɪ'ɒsətɪ /

UK / ˌkjʊriˈɑsɪti /

B1
  • noun
  • Something unusual and perhaps worthy of collecting
  • Eager desire to learn more about something

community

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US / kə'mju:nətɪ /

UK / kəˈmjunɪti /

A2
  • noun
  • Group of people who share a common idea or area

expert

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US / 'ekspɜ:t /

UK / ˈɛkˌspɚt /

A2
  • adjecitve
  • Having special knowledge or skill
  • noun
  • Skillful person with special knowledge

duty

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US / 'dju:tɪ /

UK / ˈduti, ˈdju- /

A2
  • noun
  • Work required by your job or position
  • A tax (on imported goods)

relatively

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US / ˈrelətɪvli /

UK / ˈrɛlətɪvlɪ /

A2
  • adverb
  • In a manner comparing something to something else

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)

scratch

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US / skrætʃ /

UK / skrætʃ /

B1
  • noun
  • Action of rubbing your skin when itchy
  • A small cut or mark on a surface
  • verb
  • To rub your skin with your nails to stop an itch
  • To make a small cut or mark on a surface

waste

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US / weɪst /

UK / west /

A2
  • noun
  • Materials left over after a process has finished
  • verb
  • To kill or severely harm someone
  • To use valuable things ineffectively

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

exist

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US / ɪɡ'zɪst /

UK / ɪɡˈzɪst /

A1
  • verb
  • To be present, alive or real

furthermore

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US / ˌfɜ:ðəˈmɔ:(r) /

UK / ˌfɜ:rðərˈmɔ:r /

B1
  • adverb
  • In addition to what has been said

focus

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US / 'fəʊkəs /

UK / ˈfokəs /

A2
  • noun
  • Main purpose or center of interest or activity
  • verb
  • To see clearly by adjusting your eyes or a camera
  • To keep your attention, concentration on one thing

needle

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US / 'ni:dl /

UK / ˈnidl /

B1
  • noun
  • Part of a medical device used to inject medicine
  • Very thin pointed object used in sewing
  • Thin pointed leaves of some trees, e.g. pine tree
  • verb
  • To upset someone by making rude or hurtful remarks

loss

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US / lɒs /

UK / lɔ:s /

A2
  • noun
  • Friend, family, or other loved person's death
  • Decrease or decline in quantity or amount
  • Experience or state of failing to have or keep
  • A situation when you lose a game
  • Process of failing to have or keep something
  • Difficulty or trouble caused by someone's leaving
  • Situation when more money is spent than is earned

sample

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US / ˈsɑ:mpl /

UK / ˈsæmpl /

A2
  • noun
  • A small quantity of something used as a taster
  • verb
  • To try (e.g. food, drink), to see if you like it

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

fertilization

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US / ˌfɜ:təlaɪ'zeɪʃn /

UK / ˌfɚtlɪˈzeʃən /

B1
  • noun
  • Process of a sperm entering an egg in reproduction

group

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US / ɡru:p /

UK / ɡrup /

A1
  • noun
  • Two or more musicians who play music together
  • Number of people or things gathered together
  • verb
  • To combine or collect objects or people together

protect

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US / prə'tekt /

UK / prəˈtɛkt /

A1
  • verb
  • To defend someone or something from harm or danger

world

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US / wɜ:ld /

UK / wɜrld /

A1
  • noun
  • All the humans, events, activities on the earth
  • Political division due to some kind of similarity

young

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US / jʌŋ /

UK / jʌŋ /

A1
  • adjecitve
  • At an early stage of existence; not mature
  • Being recently created or started
  • noun
  • Babies in a group or family of animals

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

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

often

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US / ˈɔfən /

UK / ˈɔfən,ˈɑfən,ˈɔftən,ˈɑf- /

A1
  • adverb
  • Many times; frequently; on many occasions

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

his

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US / hɪz /

UK / hɪz /

A1
  • pronoun
  • Something belonging to a male person

handful

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US / 'hændfʊl /

UK / ˈhændˌfʊl /

B1
  • noun
  • an amount of something that can be held in one hand; small quantity or amount of people or things
  • A thing requiring great effort to control, manage

southern

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US / ˈsʌðən /

UK / ˈsʌðərn /

A2
  • adjecitve
  • Concerning a region in the south
  • Being in or toward the south

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

alive

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US / ə'laɪv /

UK / əˈlaɪv /

A2
  • adjecitve
  • Living; not dead

hence

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US / hens /

UK / hɛns /

B1
  • adverb
  • A place far away from here
  • Therefore
  • From this time forward

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

plan

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US / plæn /

UK / plæn /

A1
  • noun
  • Drawing of how something should be done or made

part

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US / pɑ:t /

UK / pɑ:rt /

A1
  • adjecitve
  • To some degree; half; not fully
  • noun
  • Division of a book
  • Ratio of something, e.g. 3 of gin, 1 of tonic
  • A line in a person's hair, made with a comb
  • Character an actor plays on stage, movie, or TV
  • Some, but not all of a specific thing
  • Role in causing something to happen
  • verb
  • To make a line in a person's hair, by using a comb
  • To move two things apart creating a space
  • To leave someone, or to break off a relationship

address

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US / ə'dres /

UK / əˈdrɛs /

A1
  • noun
  • Exact street location of a place
  • A formal speech to a group of people
  • verb
  • To write the place someone lives on a letter
  • To refer to someone or something formally
  • To make a formal speech to a group of people
  • To try to find a solution to; think about

carry

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US / ˈkæri /

UK / ˈkæri /

A1
  • verb
  • To have a child, be pregnant
  • To have a disease you might give to others
  • (Of stores) to sell a particular product
  • To hold something and move it to another place
  • To travel a long distance (sound)
  • To support the weight or burden of something

creature

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US / ˈkri:tʃə(r) /

UK / ˈkritʃɚ /

A2
  • noun
  • Animal of any type

disease

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US / dɪˈzi:z /

UK / dɪˈziz /

A2
  • noun
  • Illness that affects a person, animal, or plant

final

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US / ˈfaɪnl /

UK / ˈfaɪnəl /

A1
  • adjecitve
  • That will not be changed; permanent
  • Being the last thing in a series
  • noun
  • Last game in a series in a competition

save

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US / seɪv /

UK / sev /

A1
  • noun
  • Preventing a player in a game from scoring a goal
  • preposition
  • Except; not including
  • verb
  • To make your computer keep a file
  • To keep for future use
  • To make something unnecessary; prevent
  • To keep money so that you will have it later
  • To keep something for future use, such as money
  • To keep or rescue someone or something from harm
  • To prevent a player in a game from scoring a goal
  • To avoid the unnecessary waste of energy, etc.

same

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US / seɪm /

UK / sem /

A1
  • adjecitve
  • Being equal in quality and amount
  • Identical; not different
  • Not changing; constant

credit

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US / 'kredɪt /

UK / ˈkrɛdɪt /

A2
  • adjecitve
  • Having a positive amount of money
  • noun
  • System to buy something and pay for it later
  • Points earned instead of money
  • Quality of having a good reputation for a reason
  • Points earned towards a university degree
  • verb
  • To add a certain amount of money to a total
  • To recognize someone's achievements or help

establish

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US / ɪˈstæblɪʃ /

UK / ɪˈstæblɪʃ /

A2
  • verb
  • To set or create something to last for a long time
  • To use facts, evidence to show truth or clarity

effect

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US / ɪ'fekt /

UK / ɪˈfɛkt /

A1
  • noun
  • An advantage, benefit
  • Change brought about by a cause; result

justify

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US / ˈdʒʌstɪfaɪ /

UK / ˈdʒʌstəˌfaɪ /

B1
  • verb
  • To give good reasons for something

nyan

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US / /

UK / /

A1

degenerative

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US / dɪ'dʒenərətɪv /

UK / dɪˈdʒɛnərətɪv /

B2
  • adjecitve
  • (Medical) gradually declining in condition or function

harvest

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US / ˈhɑ:vɪst /

UK / ˈhɑ:rvɪst /

B1
  • noun
  • Gathering crops from the fields; the crops
  • The time of year to bring crops in from the fields
  • verb
  • To gather ripe crops in from the fields

hybrid

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US / ˈhaɪbrɪd /

UK / ˈhaɪbrɪd /

B2
  • adjecitve
  • Formed from combining different things
  • noun
  • Something formed from combining different things

rat

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US / ræt /

UK / ræt /

B1
  • noun
  • Long-tailed rodent similar to/bigger than a mouse
  • Person who is not loyal and reveals secrets

vitro

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US / ˈviːtrəʊ /

UK / ˈviːtroʊ /

A1
  • noun

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

yet

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US / jet /

UK / jɛt /

A1
  • adverb
  • At a later time (used after ‘not’)
  • (Used to emphasize that thing is, will be greater)
  • Eventually; at a future time
  • Until now; up to the present
  • conjunction
  • Adding to what has been said, often as a contrast

apply

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US / ə'plaɪ /

UK / əˈplaɪ /

A1
  • verb
  • To spread a substance or liquid over a surface
  • To commit your time and effort to doing something
  • To make something useful in a certain situation
  • To be relevant for a situation
  • To ask formally for (job, permission etc.)

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

good

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US / ɡʊd /

UK / ɡʊd /

A1
  • adjecitve
  • Proper, appropriate or right
  • (Of an amount) enough; plenty
  • Excellent; high quality
  • Acting well or properly; of moral character
  • In a positive or happy emotional state
  • noun
  • Advantage or benefit

life

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US / laɪf /

UK / laɪf /

A1
  • noun
  • All the living things e.g. animals, plants, humans
  • Period of time things live, from birth to death

ovary

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US / ˈəʊvəri /

UK / ˈoʊvəri /

C1
  • noun
  • Egg-producing organ of female humans and animals

ovulation

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US / ˌɒvjʊ'leɪʃn /

UK / ˌɒvjʊ'leɪʃn /

C1
  • noun
  • Production of eggs within the female body

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

compare

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US / kəm'peə(r) /

UK / kəmˈpɛr /

A1
  • verb
  • To consider how similar and different things are

interested

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US / ˈɪntrəstɪd /

UK / ˈɪntrɪstɪd, -tərɪstɪd, -təˌrɛstɪd /

A1
  • adjecitve
  • Having had your attention taken; curious
  • verb
  • To make someone want to know about something
  • To persuade to do, become involved with something

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

resilient

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US / rɪ'zɪlɪənt /

UK / rɪˈzɪljənt /

B2
  • adjecitve
  • Recovering quickly from something bad

understand

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US / ˌʌndə'stænd /

UK / ˌʌndɚˈstænd /

A1
  • verb
  • To know the meaning of language, what someone says

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

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

ancestral

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US / ænˋsestrəl /

UK / ænˋsestrəl /

B1
  • adjecitve
  • Concerning dead relatives

friend

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US / frend /

UK / frɛnd /

A1
  • noun
  • Person who you like and enjoy being with

host

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US / həʊst /

UK / host /

A2
  • noun
  • Mass; a great number
  • Person who entertains guests
  • Plant or animal on or in which parasites live
  • Presenter on a television or radio program
  • verb
  • To be the sponsor of an event, e.g. the Olympics
  • To lead or start a party, program, or other event
  • To lead a TV or radio show as the announcer

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

perform

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US / pə'fɔ:m /

UK / pɚˈfɔrm /

A1
  • verb
  • To carry out an action well or successfully
  • To entertain an audience by dancing, singing etc.

fix

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US / fɪks /

UK / fɪks /

A2
  • noun
  • Answer to a problem
  • verb
  • To arrange or prepare something
  • To attach something so it will not move or change
  • To dishonestly arrange the result of a game
  • To make an animal unable to produce young
  • To make something whole or able to work again

incredibly

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US / ɪnˈkredəbli /

UK / ɪnˈkrɛdəblɪ /

A2
  • adverb
  • To a great degree; very; amazingly

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

textbook

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US / ˈtekstbʊk /

UK / ˈtɛkstˌbʊk /

A1
  • noun
  • A book that is used to study

themselves

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US / ðəmˈselvz /

UK / ðɛmˈsɛlvz, ðəm- /

A1
  • pronoun
  • Reflexive form of 'they'

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

press

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US / pres /

UK / prɛs /

A2
  • noun
  • Machine using pressure to shape, flatten, squeeze
  • General term for TV, radio, newspapers
  • A machine that prints books and newspapers
  • verb
  • To make clothes smooth using a heated iron; iron
  • To repeatedly ask someone to do something
  • To print something such as a book or newspaper
  • To push something against something else
  • To squeeze the liquid out of grapes, etc.

resource

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US / riˈsɔ:s /

UK / ˈriˌsɔrs, -ˌsors, -ˌzɔrs, -ˌzors, rɪˈsɔrs, -ˈsors, /

A2
  • noun
  • Something that can be used profitably; asset
  • An essential supply of something
  • Resourcefulness; ability to deal with problems
  • verb
  • To obtain (e.g. oil, gas) from its source

aim

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US / eɪm /

UK / em /

A2
  • noun
  • Act of pointing something at a target
  • Purpose or goal
  • verb
  • To point something at a target
  • To intend to get a thing or for a thing to happen

arrive

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US / əˈraɪv /

UK / əˈraɪv /

A1
  • verb
  • To reach the place you are traveling to

any

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US / 'enɪ /

UK / ˈɛni /

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

effort

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US / ˈefət /

UK / ˈɛfət /

A2
  • noun
  • Amount of work used trying to do something

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

domesticate

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US / də'mestɪkeɪt /

UK / dəˈmɛstɪˌket /

C1
  • verb
  • To train an animal as a pet or to do work; tame
  • To breed a plant to be used or consumed by humans
  • To train to behave appropriately inside a home

local

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US / ˈləʊkl /

UK / ˈloʊkl /

A2
  • adjecitve
  • Relating to a particular area, city, or town
  • noun
  • Bus or train, that stops at most stations
  • People who live in the area being discussed
  • The pub you most frequently go to

pose

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US / pəʊz /

UK / poʊz /

B1
  • noun
  • False behavior to gain respect or liking
  • verb
  • To be or exist as (a problem, threat etc.)
  • To suggest an idea, question or solution
  • To sit or stand while being painted or drawn
  • To put someone in a position to be photographed

risky

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US / ˈrɪski /

UK / ˈrɪski /

A2
  • adjecitve
  • With the chance it may be dangerous, unsuccessful

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

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

leave

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US / li:v /

UK / liv /

A1
  • noun
  • Permission to do something
  • Vacation time; time off work
  • verb
  • To go away from; depart
  • To gift property to someone after you die
  • To allow something to continue happening
  • To let something remain unused or available
  • To let something or someone remain somewhere

needless

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US / ˈniːdləs /

UK / ˈniːdləs /

B1
  • adjecitve
  • Unnecessary; pointless

reduce

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US / rɪ'dju:s /

UK / rɪˈdus, -ˈdjus /

A2
  • verb
  • To try to decrease, e.g. your weight if overweight
  • To boil a liquid until it has decreased in amount
  • To make something smaller in size, amount, level

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

wonderful

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US / ˈwʌndəfl /

UK / 'wʌndərfl /

A2
  • adjecitve
  • Producing feelings of enjoyment or delight

cite

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US / saɪt /

UK / saɪt /

B1
  • verb
  • To officially order someone to appear in court
  • To officially praise someone, e.g. for bravery
  • To reference the work of others in your writing

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

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

two

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US / tu: /

UK / tu /

A1
  • number
  • 2

trigger

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US / 'trɪɡə(r) /

UK / ˈtrɪɡɚ /

B1
  • noun
  • Lever on a gun that you pull to fire
  • Device that starts a process
  • verb
  • To start a process off e.g. a memory

couple

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US / 'kʌpl /

UK / ˈkʌpəl /

A2
  • noun
  • Two people in a romantic relationship
  • Two of something; two people; a pair
  • verb
  • To join something to something else
  • (Two animals) to engage in sexual relations
  • To put two people or things together

lie

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US / laɪ /

UK / lai /

A2
  • noun
  • An untrue statement, when you know it is not true
  • verb
  • To be in a horizontal or flat position
  • To say something that you know is not true

forever

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US / fər'evə(r) /

UK / fɔrˈɛvɚ, fə- /

B1
  • adverb
  • For all future time; in the future

forty

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US / 'fɔ:tɪ /

UK / ˈfɔrti /

A1
  • number
  • 40

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

mess

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US / mes /

UK / mɛs /

A2
  • noun
  • Something that is untidy, dirty or unclean
  • verb
  • To make something untidy or dirty

rather

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US / 'rɑ:ðə(r) /

UK / ˈræðɚ, ˈrɑðɚ /

A1
  • adverb
  • Somewhat; fairly; not that much

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

scheme

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US / ski:m /

UK / skim /

A2
  • noun
  • Plan (sometimes dishonest) to get or do something
  • Way something is organized, e.g. colors of a room
  • verb
  • To make secret plans to do something (often bad)

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

button

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US / 'bʌtn /

UK / ˈbʌtn /

A2
  • noun
  • Small round piece material used to fasten clothing
  • Switch activated by pressing
  • verb
  • To fasten e.g. a shirt, coat

large

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US / lɑ:dʒ /

UK / lɑ:rdʒ /

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

kid

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US / kɪd /

UK / kɪd /

A2
  • adjecitve
  • Made from young goat skin
  • noun
  • Child or young person
  • Young goat
  • verb
  • To make fun of someone in a gentle way; to tease

robot

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US / ˈrəʊbɒt /

UK / ˈroʊbɑ:t /

B1
  • noun
  • Machine able perform more tasks that people can

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

dozen

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US / ˈdʌzn /

UK / ˈdʌzən /

A2
  • noun
  • 12 people or things

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

pain

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US / peɪn /

UK / pen /

A1
  • noun
  • Strong feeling of hurt or discomfort
  • Something or someone that bothers or upsets you
  • verb
  • To cause someone to feel upset or worry

rhino

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US / 'raɪnəʊ /

UK / ˈraɪno /

B2
  • noun
  • Large mammal with one or two horns on its nose

another

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US / əˈnʌðə(r) /

UK / əˈnʌðɚ /

A1
  • adjecitve
  • One more, but not this
  • determiner
  • One more added
  • pronoun
  • One more (thing)

issue

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US / 'ɪʃu: /

UK / ˈɪʃu /

A2
  • noun
  • Important topic discussed, debated or argued over
  • Single edition of a magazine
  • verb
  • To make something available to be used or sold
  • To deliver a statement, etc. in an official manner

real

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US / rɪəl /

UK / ˈriəl, ril /

A1
  • adjecitve
  • Actually existing or happening, not imagined
  • Being important or special

untreatable

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US / /

UK / /

B1
  • adjecitve
  • (Of illness) unable to be improved by medicine

ton

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US / tʌn /

UK / tʌn /

A2
  • noun
  • Unit of weight; 907 kilograms (US); 1016 (UK)

neither

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US / ˈnaɪðə(r) /

UK / ˈniðɚ, ˈnaɪ- /

A2
  • adjecitve
  • Not one or the other not either none of two things
  • adverb
  • Similarly not, also not
  • conjunction
  • Not in either case
  • determiner
  • Not one or the other
  • pronoun
  • Not either one

otherwise

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US / ˈʌðəwaiz /

UK / ˈʌðɚˌwaɪz /

A2
  • adverb
  • In an additional or different way
  • Unless; or

payoff

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US / 'peɪɔ:f /

UK / ˈpeˌɔf, -ˌɑf /

A1
  • noun
  • Final payment of a debt

male

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US / meɪl /

UK / ˈmel /

A2
  • adjecitve
  • Characteristic of boys or men
  • noun
  • A member of the sex that fertilizes eggs

risk

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US / rɪsk /

UK / rɪsk /

A1
  • noun
  • Actions that cause potential problems
  • verb
  • To do something potentially dangerous or foolish

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

breed

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US / bri:d /

UK / brid /

A2
  • noun
  • Kind of / sort of
  • Particular kind of animal, e.g. a Labrador dog
  • verb
  • To create situations for a (bad) thing to happen
  • To produce baby animals of specific kinds
  • To have (children); bring up or raise children

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

biology

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US / baɪˈɒlədʒi /

UK / baɪˈɑlədʒi /

A2
  • noun
  • The study of living things

common

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US / 'kɒmən /

UK / ˈkɑmən /

A1
  • adjecitve
  • Shared; Belonging to or used by everyone
  • Typical, normal; not unusual
  • noun
  • Area in a city or town that is open to everyone
  • Field near a village owned by the local community

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

produce

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US / prə'dju:s /

UK / prəˈdus, -ˈdjus, pro- /

A1
  • noun
  • Fresh foods such as fruits and vegetables
  • verb
  • To grow something naturally
  • To make something appear
  • To manufacture something using machines
  • To control the making a movie or television show

return

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US / rɪ'tɜ:n /

UK / rɪ'tɜ:rn /

A1
  • adjecitve
  • Do again; repeated
  • noun
  • Faulty or unwanted product sent back to a company
  • Enter key; the main key on the computer keyboard
  • Profit made as a result of a business activity
  • Process of going back to a previous way or state
  • verb
  • To hit something back to the other player or team
  • To come back after being away from somewhere
  • To repay someone's actions, kindness etc.
  • To put, bring, take, give, or send something back
  • To occur again

daughter

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US / ˈdɔ:tə(r) /

UK / ˈdɔtɚ /

A1
  • adjecitve
  • (Of a company) being a subsidiary of another firm
  • noun
  • A female child of someone

evidence

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US / 'evɪdəns /

UK / ˈɛvɪdəns /

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

main

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US / meɪn /

UK / men /

A1
  • adjecitve
  • Most important; most often used

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

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

bring

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US / brɪŋ /

UK / brɪŋ /

A1
  • verb
  • To take or go with someone to a place

poacher

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US / 'pəʊtʃə(r) /

UK / ˈpotʃɚ /

B1
  • noun
  • Someone who hunts or fishes on prohibited land

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

human

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US / 'hju:mən /

UK / ˈhjumən /

A1
  • adjecitve
  • Concerning or characteristic of people
  • noun
  • A person; a man, woman or child

doom

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US / du:m /

UK / dum /

B2
  • noun
  • Certain of the failure or destruction of
  • Very bad, unhappy future event or situation
  • verb
  • To make failure, defeat or death certain for

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

thank

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US / θæŋk /

UK / θæŋk /

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

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

approach

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US / ə'prəʊtʃ /

UK / əˈprəʊtʃ /

A2
  • noun
  • Means of reaching a place, often a road or path
  • Request of someone with a specific goal in mind
  • Specific way to handle a project, task, problem
  • verb
  • To get close to reaching something or somewhere
  • To request someone to do something specific

result

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US / rɪ'zʌlt /

UK / rɪˈzʌlt /

A2
  • noun
  • Something produced through tests or experiments
  • Final score of a competition, election or game
  • verb
  • To be the outcome of other causes and effects

severe

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US / sɪ'vɪə(r) /

UK / səˈvɪr /

A2
  • adjecitve
  • Very bad; harsh
  • Being very serious or extremely bad
  • (Of clothes, etc.) plain; simple; not decorated

bounce

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US / baʊns /

UK / baʊns /

B1
  • noun
  • A person's energy or confidence
  • Quality causing a person's hair to appear healthy
  • verb
  • To move around energetically, playfully
  • To forcibly remove a person from a bar, nightclub
  • (Of check) to be rejected due to inadequate funds
  • To strike a surface and rapidly change direction
  • To move energetically in an up and down motion

notably

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US / ˈnəʊtəbli /

UK / ˈnoʊtəbli /

A2
  • adverb
  • In a way that deserves notice; particularly

multi

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US / 'mʌlti /

UK / ˈmʌlti /

B1
  • prefix
  • A prefix meaning 'many' or 'more than one'

scishow

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US / ə'lɜ:tnəs /

UK / ə'lɜ:tnəs /

A1

their

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US / ðɛː /

UK / ðer /

A1
  • determiner
  • Belonging to them

succumb

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US / səˈkʌm /

UK / səˈkʌm /

B2
  • verb
  • To eventually die from a disease
  • To give in to something tempting

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

technique

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US / tekˈni:k /

UK / tɛkˈnik /

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

accusation

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US / ˌækjuˈzeɪʃn /

UK / ˌækjuˈzeʃən /

A2
  • noun
  • When you claim that someone has committed a crime

eighteen

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US / ˌeɪˈti:n /

UK / eˈtin /

A1
  • number
  • 18

work

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US / wɜ:k /

UK / wɚk /

A1
  • adjecitve
  • Activity completed in order to make money
  • noun
  • The product of some artistic or literary endeavor
  • Everything created by an author, artist, musician
  • Activity you do in order to make money
  • Place of employment
  • Final product or result of a some labor or effort
  • verb
  • To bring into a specific state of success
  • To be functioning properly, e.g. a car
  • To do your job in your company or workplace
  • To make an effort to do something
  • To operate a machine or device

worry

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US / ˈwʌri /

UK / ˈwɜ:ri /

A1
  • noun
  • Something that causes trouble or concern
  • verb
  • To cause concern or trouble over something

bottleneck

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US / ˈbɒtlnek /

UK / ˈbɑ:tlnek /

C2
  • noun
  • Become narrow, like a bottleneck

for

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US / fə(r) /

UK / fɔr,fə /

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

reinvent

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US / ˌri:ɪn'vent /

UK / ˌriɪnˈvɛnt /

B1
  • verb
  • To present something in a new and interesting way

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

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

worth

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US / wɜ:θ /

UK / wɚθ /

A2
  • other
  • the financial, practical or moral value of somebody/something
  • having a particular value, especially in money

consequence

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US / ˈkɔnsikwəns /

UK / ˈkɑnsɪˌkwɛns,-kwəns /

A2
  • noun
  • Importance of a person or thing
  • Outcome of an event; result

danger

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US / ˈdeɪndʒə(r) /

UK / ˈdendʒɚ /

A1
  • noun
  • The possibility of getting hurt, damaged, killed

incredible

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US / ɪnˈkredəbl /

UK / ɪnˈkrɛdəbəl /

A2
  • adjecitve
  • Very good; amazing
  • Really good; amazing; great
  • Very hard to believe

such

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US / sʌtʃ /

UK / sʌtʃ /

A1
  • determiner
  • Being similar to
  • (Thing) as previously stated or referred to
  • adverb
  • (Used to emphasize the quality of an adjective)

difficult

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US / 'dɪfɪkəlt /

UK / ˈdɪfɪˌkʌlt, -kəlt /

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

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

rebuild

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US / ˌri:'bɪld /

UK / riˈbɪld /

A2
  • verb
  • To get back something that was lost, e.g. trust
  • To repair something that was damaged or destroyed

generation

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US / ˌdʒenəˈreɪʃn /

UK / ˌdʒɛnəˈreʃən /

A2
  • noun
  • Act or process of producing or causing something
  • People born and living at about the same time

mouse

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US / maʊs /

UK / maʊs /

A2
  • noun
  • Small animal that has fur and a long tail
  • Computer device to control movement on a screen
  • Quiet, shy person

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

though

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US / ðəu /

UK / ðo /

A1
  • adverb
  • Although, despite the fact that

leg

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US / leɡ /

UK / lɛɡ /

A1
  • noun
  • Part of the body from the hips down
  • The piece of furniture that touches the ground

pregnancy

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US / ˈpregnənsi /

UK / ˈprɛɡnənsi /

B1
  • noun
  • When a woman carries her unborn baby inside her

ambitious

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US / æmˈbɪʃəs /

UK / æmˈbɪʃəs /

A2
  • adjecitve
  • Having the desire to be successful in life, work

animal

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US / ˈænɪml /

UK / ˈænəməl /

A1
  • noun
  • A living creature that is not a plant or person

ovarian

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US / əʊ'veərɪən /

UK / oˈvɛriən /

C1
  • adjecitve
  • Concerning or involving the ovaries

recover

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US / rɪ'kʌvə(r) /

UK / rɪ'kʌvər /

A2
  • verb
  • To return to a prior normal condition
  • To get back something that was lost

report

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US / rɪ'pɔ:t /

UK / rɪˈpɔrt, ˈport /

A1
  • noun
  • Account of the necessary facts and information
  • The telling of news in the media
  • Official statement about something
  • verb
  • To submit a report or bill to the government
  • To write in a newspaper or speak on a news program
  • To state something officially
  • To officially present yourself to an authority
  • To describe something by telling it to others

preliminary

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US / prɪˈlɪmɪnəri /

UK / prɪˈlɪməˌnɛri /

B1
  • adjecitve
  • Happening or necessary before a thing happens
  • noun
  • Action preparing for the main event

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

technology

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US / tek'nɒlədʒɪ /

UK / tɛkˈnɑlədʒi /

A2
  • noun
  • Use or knowledge of science in industry etc.

ambitiously

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US / æm'bɪʃəslɪ /

UK / æm'bɪʃəslɪ /

B1
  • adverb
  • So as to achieve the desire to be successful

individual

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US / ˌɪndɪˈvɪdʒuəl /

UK / ˌɪndəˈvɪdʒuəl /

A2
  • adjecitve
  • Made for use by one single person
  • Having a distinct manner different from others
  • noun
  • Single person, looked at separately from others

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

under

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US / ˈʌndə(r) /

UK / ˈʌndɚ /

A1
  • adjecitve
  • In the same place as another thing, but lower
  • adverb
  • In a lower quantity or price than expected
  • preposition
  • According to the terms of an agreement or law
  • Managed or controlled by the authority of
  • Being of a lesser quality or amount than expected
  • Influenced or affected by something or someone
  • Less or lower in age, amount, size or number

standard

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US / 'stændəd /

UK / ˈstændəd /

A2
  • adjecitve
  • Being the accepted normal level of quality
  • (Of a language) being the most accepted in a place
  • noun
  • Official unit of measuring something
  • Principle of behaving in a moral way

brink

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US / brɪŋk /

UK / brɪŋk /

B2
  • noun
  • Near to happening; on the verge of

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

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

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

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)

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

eye

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US / aɪ /

UK / aɪ /

A1
  • noun
  • The part of the body that you see with
  • The skill to see the good and bad parts of a thing
  • Hole at the end of a needle
  • verb
  • To watch or study something closely

care

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US / keə(r) /

UK / kɛr /

A1
  • noun
  • Treatment you receive for your health or safety
  • Something that a person worries about
  • verb
  • To feel interest, concern, or worry
  • To look after someone or something

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

threat

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US / θret /

UK / θrɛt /

A2
  • noun
  • Warning of probable trouble
  • A warning that you may be harmed

second

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US / 'sekənd /

UK / ˈsɛkənd /

A1
  • adjecitve
  • 2nd; the one following first
  • noun
  • Unit of time; one sixtieth of a minute
  • Short period of time that you wait for someone
  • (Do) soon

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

week

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US / wi:k /

UK / wik /

A1
  • noun
  • Period of seven days from Sunday to Saturday

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

first

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US / fɜ:st /

UK / fɚst /

A1
  • adjecitve
  • 1st; Coming before all others in time or place
  • noun
  • Something that has not happened before
  • Position of the winner of a competition

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

hit

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US / hɪt /

UK / hɪt /

A1
  • noun
  • A planned killing, usually for money
  • Song, movie etc. that is successful
  • When someone strikes someone or something
  • Time when a player makes contact with the ball
  • Time when a website is accessed
  • verb
  • To have a negative impact on a person/place/thing
  • To press something, such as a button or switch
  • To suddenly realize the importance of something
  • To move your hand, a bat, etc. against with force
  • To fight, attack or damage something or someone
  • To arrive at a specific place, level, or goal
  • To make contact with the ball in a game or sport

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

tissue

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US / ˈtɪʃu: /

UK / ˈtɪʃu /

A2
  • noun
  • Substance formed by cells of living thing; flesh
  • Kind of thin, light paper used to pack objects
  • Thin soft paper for blowing the nose, etc.

specie

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US / 'spi:ʃi: /

UK / 'spi:ʃɪ /

B1
  • noun
  • Singular of species

tell

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US / tel /

UK / tɛl /

A1
  • verb
  • To (strongly) advise a person to do something
  • To be able to guess
  • To say or communicate information to someone
  • To inform, but without speaking; indicate
  • To have a negative effect on someone
  • To order someone to do something; command
  • To recognize something based on certain signs
  • To report something to an authority
  • To explain something or teach someone something

anesthesia

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US / ˌænəs'θi:ʒə /

UK / ˌænɪsˈθiʒə /

A1
  • other
  • Loss of bodily sensation with or without loss of consciousness

cell

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US / sel /

UK / sɛl /

A2
  • noun
  • Smallest unit of living things in biology
  • Group of people - often from a secret organization
  • Prisoner's room in a jail
  • Shortened form of 'cellphone'

chest

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US / tʃest /

UK / tʃɛst /

A2
  • noun
  • Strong, lidded container for storing things
  • Front of the body between neck and stomach

closely

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US / 'kləʊslɪ /

UK / ˈkloslɪ /

A2
  • adverb
  • In a careful manner
  • Nearby; just next to

ethical

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US / ˈeθɪkl /

UK / ˈɛθɪkəl /

B1
  • adjecitve
  • Morally right; following principles of goodness
  • Involving the choice between right and wrong

example

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US / ɪgˈzɑ:mpl /

UK / ɪɡˈzæmpəl /

A1
  • noun
  • Thing, person which represents a category

happen

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US / 'hæpən /

UK / ˈhæpən /

A1
  • verb
  • To take place or occur

diversity

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US / daɪ'vɜ:sətɪ /

UK / dɪˈvə:sɪti, daɪ- /

B1
  • noun
  • Having a range of different races, ideas etc.

inspire

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US / ɪn'spaɪə(r) /

UK / ɪnˈspaɪr /

B1
  • verb
  • To give someone an idea to do or make something
  • To make someone feel a certain emotion

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

conservation

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US / ˌkɒnsəˈveɪʃn /

UK / ˌkɑ:nsərˈveɪʃn /

B1
  • noun
  • Protecting the environment or a species
  • Act of keeping in reserve

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

hind

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US / haɪnd /

UK / haɪnd /

B2
  • adjecitve
  • Concerning the rear or back part of animals

great

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US / ɡreɪt /

UK / ɡret /

A1
  • adjecitve
  • Very large in size
  • Very important
  • Very good; fantastic; wonderful
  • adverb
  • Very good; better than before
  • noun
  • Successful and well-admired person

lab

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US / læb /

UK / læb /

B1
  • noun
  • Short for 'laboratory'

learner

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US / 'lɜ:nə(r) /

UK / 'lɜ:rnər /

A1
  • noun
  • Someone gaining knowledge or skill through study

mean

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US / mi:n /

UK / min /

A1
  • adjecitve
  • Being good at
  • Nasty; unkind
  • Not liking to spend money; cheap; stingy
  • noun
  • Average of a set of numbers
  • verb
  • To express a particular idea or thought
  • To intend to do something in particular
  • To have a particular meaning or value

inherently

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US / ɪn'herəntlɪ /

UK / ɪn'herəntlɪ /

B1
  • adverb
  • As an essential part of

primarily

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US / praɪˈmerəli /

UK / praɪˈmɛrəli, -ˈmɛr- /

A2
  • adverb
  • In the most basic or important way

proper

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US / 'prɒpə(r) /

UK / ˈprɑpɚ /

A2
  • adjecitve
  • Correct according to social or moral rules

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

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

endanger

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US / ɪn'deɪndʒə(r) /

UK / ɛnˈdendʒɚ /

B1
  • verb
  • To bring a person/thing into a dangerous situation

least

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US / li:st /

UK / list /

A1
  • adverb
  • In the smallest or lowest way
  • noun
  • Something that is of the lowest or smallest degree

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

she

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US / ʃɪ /

UK / ʃi /

A1
  • pronoun
  • Female person or animal mentioned before
  • (Refers to female person mentioned before)

thirty

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US / 'θɜ:tɪ /

UK / ˈθə:ti /

A1
  • number
  • 30

lack

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US / læk /

UK / læk /

A2
  • noun
  • The state of not having or not having enough of
  • A shortage of something
  • verb
  • To not have, or not have enough, of something

place

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US / pleɪs /

UK / ples /

A1
  • noun
  • Particular location, area or region
  • verb
  • To put someone in a particular type of situation
  • To put something in a certain location or position

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

tumour

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US / ˈtju:mə(r) /

UK / ˈtuːmər /

B1
  • noun
  • Abnormal growth of cells; cancer

ultimately

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US / ˈʌltɪmətli /

UK / ˈʌltəmɪtli /

B1
  • adverb
  • Done or considered as the final and most important

divert

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US / daɪˈvɜ:t /

UK / daɪˈvɜ:rt /

B2
  • verb
  • To attract someone's attention from something
  • To redirect something, such as a river or road
  • To redirect the use of (goods or money)

egg

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US / eg /

UK / ɛɡ /

A2
  • noun
  • Hard-shelled thing from which a young bird is born

include

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US / ɪnˈklu:d /

UK / ɪnˈklud /

A1
  • verb
  • To make someone, something part of a group

grader

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US / ˈgreɪdə(r) /

UK / 'ɡreɪdər /

B1
  • noun
  • Machine used to make ground flat or level
  • People to mark students' work

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

preserve

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US / prɪˈzɜ:v /

UK / prɪˈzɜ:rv /

B1
  • noun
  • Protected area of land with plants and animals
  • verb
  • To cook food so it can be kept for long periods
  • To protect something from harm, loss or damage
  • To keep or maintain unchanged or perfect

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

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
  • Subtitles section
  • The northern white rhino used to be widespread, but thanks primarily to poaching, today there are only two left alive in the entire world.
  • Both are female, and both are infertile.
  • Unfortunately, that's pretty much the end of the road for any species.
  • However, there's a group of scientists out there that has an ambitious plan to revive the species using in vitro fertilization.
  • That is to say, creating new baby northern white rhinos in a lab.
  • Can they really do it?
  • Maybe.
  • Their preliminary results look pretty good.
  • But should we be bringing these animals back?
  • It's a more complicated question than you might think.
  • I'm Jessi Knutson Casanieta, wildlife educator.
  • I'm here to help break it down.
  • In vitro fertilization is a technique where sperm and egg are brought together in a lab, rather than inside an animal's body.
  • And for a while now, some conservationists have eyed using IVF to save endangered species.
  • The idea is that we could use IVF to create a ton of embryos, and thus babies, from a relatively small number of donors.
  • It's fairly common to do this with domesticated animals, and we have been able to do it with a number of wild animals, like tigers for example.
  • In January of this year, a group called BioRescue reported that they'd been able to induce a pregnancy using IVF in the southern white rhino, the sister subspecies to the northern white rhino.
  • They kind of have to do it that way because of the lack of northern white rhinos to try it out on, but they're closely related enough that the plan would be to use the southern white rhino's surrogates to carry northern white rhino embryos.
  • BioRescue has been aiming to do IVF in northern white rhinos for a while, so this seems like a big breakthrough.
  • Because even though there are no living males left for the northern white rhino, we do have preserved sperm samples.
  • Even more ambitiously, we also have preserved non reproductive cells that we could coax into turning back into stem cells, the kind of blank slate for our biology.
  • It hasn't happened in rhinos, but we have done it in mice.
  • Those stem cells could then be turned into reproductive cells.
  • BioRescue has reported that they've been able to create and preserve about two dozen fertilized northern white rhino eggs.
  • This all raises the hopes that this can be part of a larger step by step plan that would ultimately end in returning northern white rhinos to the wild again.
  • And that's great, right?
  • The thing is, even though the idea of bringing back an endangered species from the brink seems like an inherently good idea,
  • This one is so close to gone that it's worth carefully examining our assumptions and our reasoning.
  • Notably, we want to hit three big questions.
  • What's the risk?
  • What's the payoff?
  • And will it fix the real problem?
  • So first off, let's talk about the risks.
  • Specifically, the risks to the animals themselves.
  • They're living creatures, and we have an ethical duty to make sure we're not putting them through needless pain or danger.
  • In order to perform IVF on a given species, you need to know a lot about that animal's reproductive biology, like what triggers ovulation and how often it happens.
  • Knowing how to do it in tigers doesn't tell you much about how to do it in rhinos, meaning you have to start from scratch, posing a risk to the animals used in that research.
  • Furthermore, IVF can be a risky and complicated procedure.
  • In order to harvest viable egg cells from the rhinos, vets had to put these big, multi ton animals under anesthesia, lie them down on their sides of their chest, and then use a needle to get to their ovaries.
  • That carries real risks.
  • BioRescue noted that the rhinos they worked on seemed to recover quickly, and there were no adverse side effects reported.
  • But if we're going to apply this approach to saving other species, we'll have to reinvent the wheel every time.
  • For some species, the risks are unknowns, maybe too great to justify the payoff.
  • And talking about payoff, that brings us to the second question.
  • Will this actually work?
  • Could we actually bring back the species with this scheme?
  • There are only two northern white rhinos left, and they're not healthy.
  • Nyan is thirty one and has an ovarian tumor and weak hind legs.
  • Her daughter Fatu has untreatable degenerative endometriosis.
  • Neither can realistically carry a pregnancy, hence the need for southern white rhinos as surrogates.
  • This hasn't been done yet, but the species are closely related enough to have produced one hybrid calf that we know of, so it should work.
  • But that's not the only issue.
  • Rebuilding a population this way would take a while.
  • Rhinos don't grow all that quickly.
  • It would probably take at least forty years to arrive at a herd of only a couple dozen northern white rhinos.
  • But such a herd could hypothetically exist.
  • Rebuilding a population this way would take a while.
  • But would it be a healthy, viable population?
  • We're down to two living individuals and frozen tissue from a handful more.
  • This is a textbook case of what's known in population genetics as a bottleneck.
  • No matter how much genetic diversity the ancestral population once had, the only genes that can ever be passed down now are the ones in those freezers.
  • And a lack of genetic diversity makes it very difficult for a population to respond to other threats.
  • You could establish a breeding population only for them all to succumb to disease.
  • That said, there's some hope for the northern white rhinos in this regard.
  • There's evidence that the other subspecies, the southern white rhino, also went through a bottleneck.
  • One that might have been even more severe in terms of genetic loss, compared to if we used all the ionized northern white rhino material available to us.
  • They were able to bounce back to about eighteen thousand today, so maybe northern white rhinos have the capacity to be resilient too.
  • But that might not be true for every endangered species.
  • For another species in the same position, it might truly be too late.
  • So with the proper care, we may be able to reduce the risk to individual animals and make any risks worth it.
  • But here's our final and maybe the biggest question.
  • Even if it does work, will it fix the real problem?
  • Poaching is cited as the main reason the species collapsed, and if they were to return, would likely be the greatest threat once again.
  • IVF by itself wouldn't fix this.
  • And some experts have voiced worries that focusing on a technological solution may end up diverting resources away from existing conservation efforts.
  • Like, if you know you can just press a fix it button to bring back a species later, are you still going to put in the work to eliminate the threats that species has now?
  • Is it still going to have a habitat to live in?
  • That's not an accusation, but it's something to keep in mind.
  • It's kind of like how reducing waste is better than recycling it.
  • BioRescue, to their credit, has published their own ethical tools to address some of these points.
  • Other experts have highlighted the need to find a way to protect these animals from poachers and other threats,
  • and the importance of including local communities.
  • Saving endangered species is good.
  • It's important.
  • The thing is, it's also hard.
  • Human mistakes are what got these animals into this mess.
  • More human mistakes could doom them forever.
  • It's incredible that reproductive technology has a chance to bring back a species that is otherwise past the point of no return.
  • It's a wonderful glimpse of hope,
  • made possible by science.
  • Like with any new technology, it's just really important to understand what we're doing and what the consequences might be.
  • Thanks for watching this episode of SciShow.
  • I wanted to host it because I'm incredibly interested in conservation of endangered species.
  • But there's another place where you can see me every week, and that's SciShow Kids.
  • It's all about the adventures of my friend Squeaks the Robot Rat and his curiosity about everyday things.
  • SciShow Kids is meant for first through third graders and uses next generation science standards to teach science and inspire young minds.
  • So point the young learner in your life to youtube.com slash scishowkids.