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themselves

US / ðəmˈselvz /

•

UK / ðɛmˈsɛlvz, ðəm- /

A1

pronoun
Reflexive form of 'they'

whether

US / ˈweðə(r) /

•

UK / ˈhwɛðɚ, ˈwɛð- /

A1

conjunction
If something will happen or not

compare

US / kəm'peə(r) /

•

UK / kəmˈpɛr /

A1

verb
To consider how similar and different things are

necessary

US / 'nesəsərɪ /

•

UK / ˈnɛsɪˌsɛri /

A1

adjecitve
Needed or required; unavoidable

please

US / pli:z /

•

UK / pliz /

A1

adverb
Used when you politely ask people for things
verb
To entertain someone, by dancing, singing etc.
To make someone happy by doing something

would

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

but

US / bət /

•

UK / bʌt,bət /

A1

conjunction
Used before you say something different, opposite

retrofit

US / ˈretrəʊfɪt /

•

UK / ˈretroʊfɪt /

C1

noun
Component added to after it has been manufactured

convert

US / kən'vɜ:t /

•

UK / kənˈvɚt /

A2

noun
Person switching from one belief system to another
verb
To switch from a religion, belief etc. to another
To change form, character, or function to another

now

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

table

US / ˈteɪbl /

•

UK / ˈtebəl /

A1

noun
Diagram that shows data in rows and columns
Raised flat surface you sit at to work or eat
verb
To leave an idea to be discussed at a later date

reactor

US / riˈæktə(r) /

•

UK / riˈæktɚ /

B1

noun
Device to control nuclear energy as a power source

between

US / bɪˈtwi:n /

•

UK / bɪˈtwin /

A1

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

laboratory

US / lə'bɒrətrɪ /

•

UK / ˈlæbrəˌtɔri, -ˌtori /

B1

noun
A place to do scientific experiments

neither

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

they

US / ðeɪ /

•

UK / ðe /

A1

pronoun
Two or more people, animals, or things

very

US / 'verɪ /

•

UK / ˈvɛri /

A1

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

pretty

US / 'prɪtɪ /

•

UK / ˈprɪti /

A1

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

building

US / ˈbɪldɪŋ /

•

UK / ˈbɪldɪŋ /

A1

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

harmful

US / ˈhɑ:mfl /

•

UK / ˈhɑ:rmfl /

A2

adjecitve
Likely to cause damage or injury

throw

US / θrəʊ /

•

UK / θroʊ /

A1

noun
Arm movement to make a thing fly through the air
Loose cloth or blanket (usually over a chair)
Forcibly putting someone on the ground
verb
To use your arm to make something fly in the air
To move part of your body suddenly and forcefully
To confuse or upset someone
(E.g. judo) to forcibly put someone on the ground
To put something somewhere suddenly and roughly

washington

US / 'wɒʃɪŋtən /

•

UK / 'wɑ:ʃɪŋtənˌ 'wɔ:ʃɪŋ- /

A1

other
A state in northwestern United States on the Pacific

all

US / ɔ:l /

•

UK / ɔl /

A1

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

common

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

produce

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

attention

US / əˈtenʃn /

•

UK / əˈtɛnʃən /

A2

noun
Taking notice of someone or something
(Soldiers) Standing with straight backs

human

US / 'hju:mən /

•

UK / ˈhjumən /

A1

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

pay

US / peɪ /

•

UK / pe /

A1

noun
Money you receive from your job, work, etc.
verb
To give money for goods or work done
To give (attention, respect, etc.) to
To be punished or suffer for something you did
To make (a visit) to a person or place

proponent

US / prəˈpəʊnənt /

•

UK / prəˈponənt /

B2

noun
Person who supports or argues for something

thank

US / θæŋk /

•

UK / θæŋk /

A1

verb
To tell someone you are grateful to them

mining

US / ˈmaɪnɪŋ /

•

UK / ˈmaɪnɪŋ /

B2

noun
Act of digging to get coal, gold, silver etc.
verb
To place a bomb in the ground or the sea
To dig into the earth or sea to obtain minerals

take

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

not

US / nɒt /

•

UK / nɑt /

A1

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

our

US / 'aʊə(r) /

•

UK / aʊr /

A1

determiner
Belonging to us

maybe

US / ˈmeɪbi /

•

UK / ˈmebi /

A1

adverb
Possibly but not certainly; perhaps

fission

US / ˈfɪʃn /

•

UK / ˈfɪʃən /

C1

noun
Form of nuclear energy where particles combine

fuel

US / 'fju:əl /

•

UK / ˈfjuəl /

A2

noun
Material used to produce heat or power when burned
verb
To give power to (a mob, anger, etc.); incite
To provide gas or petrol for something

currently

US / ˈkʌrəntli /

•

UK / ˈkʌrənt(ə)li /

A2

adverb
Happening or being in the present time

periodic

US / ˌpɪəriˈɒdɪk /

•

UK / ˌpɪriˈɑ:dɪk /

A2

adjecitve
Happening regularly, but not frequently

fossil

US / 'fɒsl /

•

UK / ˈfɑsəl /

B1

noun
Plant or animal that became rock after many years

facebook

US / 'feɪsbʊk /

•

UK / 'feɪsbʊk /

A1

intransitive verb
Spend time using the social media application Facebook.

historically

US / hɪ'stɒrɪklɪ /

•

UK / hɪsˈtɔrɪkl:ɪ /

B1

adverb
In history; in the past

oak

US / əʊk /

•

UK / oʊk /

B2

adjecitve
Made from a special hard durable wood
noun
Hard, tough wood taken from an oak tree

can

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

until

US / ənˈtɪl /

•

UK / ʌnˈtɪl /

A1

conjunction
Up to; to a time when something happens
preposition
Before (a specific time)

ridge

US / rɪdʒ /

•

UK / rɪdʒ /

B1

noun
Edge where two leaning surfaces meet
Raised, narrow area, usually on top of a hill

lot

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

and

US / ənd /

•

UK / ənd, ən,ænd /

A1

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

two

US / tu: /

•

UK / tu /

A1

number
2

ten

US / ten /

•

UK / tɛn /

A1

number
10

possibility

US / ˌpɒsə'bɪlətɪ /

•

UK / ˌpɑsəˈbɪlɪti /

A2

noun
Something with a chance of happening or being true

completely

US / kəmˈpli:tli /

•

UK / kəmˈpliːtli /

A1

adverb
In every way or as much as possible

something

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

thorium

US / ˈθɔ:riəm /

•

UK / ˈθɔriəm, ˈθor- /

A1

noun
Soft silvery-white tetravalent radioactive metallic element; isotope is used as a power source in nu

name

US / neɪm /

•

UK / nem /

A1

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

think

US / θɪŋk /

•

UK / θɪŋk /

A1

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

norse

US / nɔ:s /

•

UK / nɔ:rs /

B2

noun
People from Norway in medieval times

literally

US / ˈlɪtərəli /

•

UK / ˈlɪtərəli /

B1

adverb
So as to express the exact meaning of something
Used to say something is true, even if unlikely

any

US / 'enɪ /

•

UK / ˈɛni /

A1

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

biologically

US / ˌbaɪəʊˈlɒdʒɪkəli /

•

UK / baɪəˈlɑdʒɪkli /

B1

adverb
As regards life and living things

environment

US / ɪn'vaɪrənmənt /

•

UK / ɛnˈvaɪrənmənt, -ˈvaɪən- /

A1

noun
Natural world in which plants and animals live
The entire surrounding conditions of something

leave

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

fukushima

US / fukuˈʃimə /

•

UK / /

A1

call

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

national

US / 'næʃnəl /

•

UK / ˈnæʃənəl, ˈnæʃnəl /

A2

adjecitve
Concerning a nation as a whole
noun
A person of a particular country

out

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

from

US / frəm /

•

UK / frʌm, frɑm,frəm /

A1

preposition
Starting at a particular place, time or level

entirely

US / ɪnˈtaɪəli /

•

UK / ɪnˈtaɪərli /

A2

adverb
Wholly; completely

rod

US / rɒd /

•

UK / rɑ:d /

B1

noun
Straight, thin stick or bar
Pole with a line and hook to catch fish with

most

US / məʊst /

•

UK / most /

A1

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

with

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

recently

US / ˈri:sntli /

•

UK / 'risṇtlɪ /

A1

adverb
Just a while ago; not long ago

process

US / prə'ses /

•

UK / ˈprɑsˌɛs, ˈproˌsɛs /

A2

noun
Dealing with official forms in the way required
Set of changes that occur slowly and naturally
verb
To organize and use data in a computer
To deal with official forms in the way required
To prepare by treating something in a certain way
To adopt a set of actions that produce a result
To convert by putting something through a machine

exist

US / ɪɡ'zɪst /

•

UK / ɪɡˈzɪst /

A1

verb
To be present, alive or real

group

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

tennessee

US / ˌtenə'si: /

•

UK / ˌtenə'si: /

A1

other
A river formed by the confluence of two other rivers near Knoxville; it follows a U-shaped course to
A state in east central United States

transfer

US / træns'fɜ:(r) /

•

UK / trænsˈfɚ /

A2

noun
Moving to a different place, job, or school
Act of giving the right to a property to another
Picture that is pressed to copy it onto something
Use of ideas or skills in a different situation
Ticket allowing you to get on another plane, bus
verb
To move to a different place, job or school
To give someone an illness through contact
To give someone your right to a property
To move something from one place to another
To use ideas or skills in a different situation
To get off a plane, bus etc. and get on another

salt

US / sɔ:lt /

•

UK / sɔlt /

A2

adjecitve
Being preserved or seasoned with salt
noun
Natural white crystal used to flavor food
verb
To add salt to food in order to improve its taste
To add salt to ice in order to melt it
To preserve food by adding salt

have

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

almost

US / 'ɔ:lməʊst /

•

UK / ˈɔlˌmost, ɔlˈmost /

A1

adverb
Only a little less than, nearly, not quite

waste

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

twitter

US / ˈtwɪtə(r) /

•

UK / ˈtwɪtɚ /

C2

noun
An online messaging system
verb
To make small chattering sounds, like some birds

see

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)

scientist

US / ˈsaɪəntɪst /

•

UK / ˈsaɪəntɪst /

A2

noun
Person who is trained in a science

problem

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

circus

US / ˈsɜ:kəs /

•

UK / ˈsɜ:rkəs /

B1

noun
Shows with clowns animals etc. performed in a tent

competition

US / ˌkɒmpəˈtɪʃn /

•

UK / ˌkɑmpɪˈtɪʃən /

A2

noun
Fighting against others to win something

could

US / kəd /

•

UK / kʊd /

A1

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

system

US / 'sɪstəm /

•

UK / ˈsɪstəm /

A1

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

much

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

fact

US / fækt /

•

UK / fækt /

A1

noun
Something that is known or proved to be true

few

US / fju: /

•

UK / fju /

A1

pronoun
Not many, a small number

stuff

US / stʌf /

•

UK / stʌf /

A1

noun
Generic description for things, materials, objects
verb
To push material inside something, with force

mothball

US / ˈmɒθbɔ:l /

•

UK / ˈmɔ:θbɔ:l /

C2

noun
Substance put near clothes to kill bugs
verb
To put into long-term storage, often permanently
To put into long-term storage

light

US / laɪt /

•

UK / laɪt /

A1

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

fan

US / fæn /

•

UK / fæn /

A2

noun
Thing you wave in front of your face to stay cool
Someone who admires a famous person, sport etc.
verb
To blow air upon a fire to make it stronger
To use a device to cool yourself, something

replace

US / rɪ'pleɪs /

•

UK / rɪˈples /

A2

verb
To use instead of something else
To return an item to its original location

determine

US / dɪ'tɜ:mɪn /

•

UK / dɪˈtɚmɪn /

A2

verb
To control exactly how something will be or act
To establish the facts about; discover

amount

US / ə'maʊnt /

•

UK / əˈmaʊnt /

A1

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

water

US / 'wɔ:tə(r) /

•

UK / ˈwɔtɚ, ˈwɑtɚ /

A1

noun
Clear liquid that forms the seas, rivers and rain
Large area such as an ocean or sea
verb
(Of the eyes) to produce tears
(Mouth) to become wet at the thought of nice food
To pour liquids onto a plant to keep it alive

steam

US / sti:m /

•

UK / stim /

A2

adjecitve
(Train, engine) powered by boiling water
noun
Mist collecting on a surface when wet air cools
Source of stamina, strength or energy
Mist of water in the air formed when water boils
verb
To cover a surface with steam, so as to clean it
To cook in mist of tiny drops from boiling water
To produce or give off a hot gas by boiling liquid
To travel or move using steam as a force

such

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)

doubt

US / daʊt /

•

UK / daʊt /

A1

noun
Not being sure of something; lack of certainty
verb
To question the truth or certainty of something

cool

US / ku:l /

•

UK / kul /

A1

adjecitve
Steady and calm when facing difficulties
Almost cold; not warm or hot
Smart or stylish in a way (young) people admire
Unfriendly in an indirect way; distant
verb
To make something decrease in temperature
(Of an emotion, etc.) to become less strongly felt

well

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

start

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

since

US / sɪns /

•

UK / sɪns /

A1

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

nuclear

US / ˈnju:kliə(r) /

•

UK / ˈnukliɚ, ˈnju- /

A2

adjecitve
Concerning or involving the center of an atom

grow

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

fraction

US / ˈfrækʃn /

•

UK / ˈfrækʃən /

B1

noun
Small part of something

question

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

difficult

US / 'dɪfɪkəlt /

•

UK / ˈdɪfɪˌkʌlt, -kəlt /

A1

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

tens

US / tɛnz /

•

UK / tɛnz /

A1

number
10s

proton

US / ˈprəʊtɒn /

•

UK / ˈproʊtɑ:n /

B2

noun
Tiny part of atom with positive electrical charge

just

US / dʒʌst /

•

UK / dʒʌst /

A1

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

worth

US / wɜ:θ /

•

UK / wɚθ /

A2

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

through

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

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

why

US / waɪ /

•

UK / hwaɪ, waɪ /

A1

adverb
Question word to ask for a reason
exclamation
(Used to express surprise or approval)

short

US / ʃɔ:t /

•

UK / ʃɔrt /

A1

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

for

US / fə(r) /

•

UK / fɔr,fə /

A1

preposition
Used to show the purpose, or need of something

yesterday

US / ˈjestədeɪ /

•

UK / ˈjestərdeɪ /

A1

adverb
Day before today
noun
Day before today

dirt

US / dɜ:t /

•

UK / dɚt /

A2

noun
Loose earth or soil

china

US / ˈtʃaɪnə /

•

UK / ˈtʃaɪnə /

A1

noun
A communist nation that covers a vast territory in eastern Asia; the most populous country in the wo
other
High quality porcelain originally made only in China

mixture

US / ˈmɪkstʃə(r) /

•

UK / ˈmɪkstʃɚ /

B1

noun
Something made by combining two or more things

scishow

US / ə'lɜ:tnəs /

•

UK / ə'lɜ:tnəs /

A1

way

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

into

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

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

power

US / 'paʊə(r) /

•

UK / ˈpaʊɚ /

A1

noun
Legal or official right to perform certain actions
Ability to move forcefully and quickly
Energy of something (e.g. electricity or fuel)
Mathematical way to multiply a number
Condition of being in political control
Physical force, energy, and strength
verb
To give energy to something, e.g. by electricity
To move something forcefully and quickly

one

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

turn

US / tɜ:n /

•

UK / tɚn /

A1

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

than

US / ðən /

•

UK / ðən /

A1

conjunction
Used to compare two things that are not equal

although

US / ɔ:lˈðəu /

•

UK / ɔlˈðo /

A1

conjunction
Despite the fact that; however

less

US / les /

•

UK / lɛs /

A1

adjecitve
Smaller in amount or degree
adverb
To a smaller degree
noun
A smaller amount
preposition
With the subtraction of

plant

US / plɑ:nt /

•

UK / plænt /

A2

noun
Factory or a place where things are made
Living thing with leaves and roots growing in soil
verb
To firmly position something (in the ground)
To put seeds, flowers, trees in the ground

pressurize

US / 'preʃəraɪz /

•

UK / ˈprɛʃəˌraɪz /

A2

verb
To add pressure to something (e.g. a diving suit)

this

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

big

US / bɪɡ /

•

UK / bɪɡ /

A1

adjecitve
Popular
Serious
Large

electricity

US / ɪˌlekˈtrɪsəti /

•

UK / ɪlɛkˈtrɪsɪti,ˌilɛk- /

A2

noun
Energy generated positive and negative charges

emit

US / ɪ'mɪt /

•

UK / ɪˈmɪt /

B1

verb
To release or send out (a gas, etc.)

fluoride

US / ˈflɔːraɪd /

•

UK / ˈflɔːraɪd /

C1

noun
Chemical added to water to improve tooth health

lead

US / li:d /

•

UK / lid /

A1

adjecitve
Being the main part in movies or plays
noun
Wire for electricity, computer, etc.; cable
Information that could help to solve a crime
Main part in a play or movie
Heavy, gray metal element
Rope used to tie something to stop it escaping
Act of being at the front in a race or game
verb
To show the way or guide others
To be at the front of a race or game
To travel in front of; go in advance of others

material

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

the

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

adapt

US / ə'dæpt /

•

UK / əˈdæpt /

B1

verb
To change something for a different function
To change something to fit or suit a new purpose

submarine

US / ˌsʌbməˈri:n /

•

UK / ˈsʌbməˌrin, ˌsʌbməˈrin /

B2

noun
Ship that travels above and below the sea

below

US / bɪ'ləʊ /

•

UK / bɪˈlo /

A1

preposition
In a lower position, place, or level

efficient

US / ɪˈfɪʃnt /

•

UK / ɪˈfɪʃənt /

A2

adjecitve
Able to produce results without waste

make

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

ones

US / wʌnz /

•

UK / wʌnz /

A1

number
Number 1, a single person or thing

run

US / rʌn /

•

UK / rʌn /

A1

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

thor

US / θɔː(r) /

•

UK / /

A1

proper noun
The god of thunder, the weather, agriculture, and the home, the son of Odin and Freya (Frigga). Thur

thunder

US / 'θʌndə(r) /

•

UK / ˈθʌndɚ /

B1

noun
Loud sound
The sound that comes from the sky from lightning
verb
To make a loud sound like that made by lightning
To express something loudly; shout angrily

also

US / 'ɔ:lsəʊ /

•

UK / ˈɔlso /

A1

adverb
In addition; too; in a similar way

cheap

US / tʃi:p /

•

UK / tʃip /

A1

adjecitve
Not costing a lot of money
Having a low quality or value
Not liking to spend money; mean; stingy

kind

US / kaɪnd /

•

UK / kaɪnd /

A1

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

how

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)

year

US / jə: /

•

UK / jɪr /

A1

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

you

US / jʊ /

•

UK / ju /

A1

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

essentially

US / ɪˈsenʃəli /

•

UK / ɪˈsenʃəli /

A2

adverb
Basically; (said when stating the basic facts)

like

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

people

US / 'pi:pl /

•

UK / ˈpipəl /

A1

noun
Persons sharing culture, country, background, etc.
Men, Women, Children

what

US / wɒt /

•

UK / hwɑt, hwʌt, wɔt, wʌt,hwət, wət /

A1

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

that

US / ðæt /

•

UK / ðæt, ðət /

A1

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

tell

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

comment

US / 'kɒment /

•

UK / ˈkɑmɛnt /

A2

noun
Something you say, giving an opinion; remark
verb
To say something that gives your opinion

down

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

then

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

uranium

US / juˈreɪniəm /

•

UK / jʊˈreniəm /

A1

noun
Radioactive element used for nuclear energy/weapon

element

US / 'elɪmənt /

•

UK / ˈɛləmənt /

A2

noun
Essential or particular part of something

get

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

energy

US / 'enədʒɪ /

•

UK / ˈɛnədʒi /

A2

noun
Physical or mental strength

find

US / faɪnd /

•

UK / faɪnd /

A1

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

watch

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

bomb

US / bɒm /

•

UK / bɑm /

B1

noun
An explosive device
verb
To attack with explosives
To fail or be completely unsuccessful

alpha

US / ˈælfə /

•

UK / 'ælfə /

B1

adjecitve
Most powerful (animals of the same sex)
noun
First letter in the Greek alphabet

chamber

US / 'tʃeɪmbə(r) /

•

UK / ˈtʃembɚ /

B1

noun
Enclosed space that contains something
Large room that is used for official meetings

happen

US / 'hæpən /

•

UK / ˈhæpən /

A1

verb
To take place or occur

hydrogen

US / ˈhaɪdrədʒən /

•

UK / ˈhaɪdrədʒən /

B1

noun
Lightest of all chemical elements

particle

US / ˈpɑ:tɪkl /

•

UK / ˈpɑrtɪkəl /

B1

noun
Adverb or preposition that joins with a verb
Tiny piece or quantity of something

boiling

US / ˈbɔɪlɪŋ /

•

UK / ˈbɔɪlɪŋ /

A2

adjecitve
Being boiled in water
verb
To become extremely angry or excited
To cook in very hot water
To make liquids hot so they turn to gas

meantime

US / ˈmi:ntaɪm /

•

UK / ˈminˌtaɪm /

B1

noun
For the present; for a while

should

US / ʃʊd /

•

UK / ʃʊd /

A1

other
Used to indicate what is proper or reasonable

after

US / 'ɑ:ftə(r) /

•

UK / ˈæftɚ /

A1

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

expense

US / ɪk'spens /

•

UK / ɪkˈspɛns /

B1

noun
Money you have to pay to do part of your job
Paying money for something (big)
When resources e.g. time is used to do something

episode

US / 'epɪsəʊd /

•

UK / ˈɛpɪˌsod /

B1

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

guess

US / ɡes /

•

UK / ɡɛs /

A1

noun
Answer given when you don't know if it is correct
verb
To give an answer without knowing if it is correct

liquid

US / ˈlɪkwɪd /

•

UK / ˈlɪkwɪd /

A2

adjecitve
(Of wealth) being able to be spent as cash
In a state of being uncertain
Moving in a flowing manner, like water or oil
noun
Something that is similar to the state of water

thousand

US / ˈθaʊznd /

•

UK / ˈθaʊzənd /

A1

number
Number 1,000

will

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

discount

US / ˈdɪskaʊnt /

•

UK / ˈdɪsˌkaʊnt /

A2

noun
A decrease in the price of something
verb
To consider to be not important or not true
To decrease the price of something
To refuse to accept an idea, suggestion as valid

production

US / prəˈdʌkʃn /

•

UK / prəˈdʌkʃən, pro- /

A2

noun
Process of producing or growing food naturally
Process of making something on a large scale
Process of making a movie or TV show

new

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

quick

US / kwɪk /

•

UK / kwɪk /

A1

adjecitve
Using very little time; moving far in little time
Learning and understanding rapidly and easily

small

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

try

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

gamma

US / 'ɡæmə /

•

UK / ˈɡæmə /

B2

noun
Third letter of the Greek alphabet

bonus

US / ˈbəʊnəs /

•

UK / ˈboʊnəs /

A2

noun
Extra money for achieving, exceeding targets

radioactive

US / ˌreɪdɪəʊ'æktɪv /

•

UK / ˌredioˈæktɪv /

B2

adjecitve
Emitting harmful energy from nuclear activity

use

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

heat

US / hi:t /

•

UK / hit /

A2

noun
State of anger, excitement, or arguing
Particular temperature at which to cook something
High temperature
One of series of races to find the finalists
Hot temperature, conditions, or weather
verb
To make hot or hotter

safe

US / seɪf /

•

UK / sef /

A2

noun
Metal box with a lock to keep valuable things in
adjecitve
Highly likely
Being out of danger

while

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

toxic

US / ˈtɒksɪk /

•

UK / ˈtɑksɪk /

B2

adjecitve
Poisonous; harmful
(Of relationships) harmful; causing conflict

develop

US / dɪ'veləp /

•

UK / dɪˈvɛləp /

A1

verb
To explain something in steps and in detail
To create or think of something
To grow bigger, more complex, or more advanced
To make a photograph from film

sure

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

switch

US / swɪtʃ /

•

UK / swɪtʃ /

A2

noun
A change or shift from one method to another
Thing you move to turn electrical items on or off
Thin flexible piece of wood or stick
verb
To exchange or replace something for another thing