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What causes addiction, and why is it so hard to treat? - Judy Grisel

Video vocabulary

limit

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US / 'lɪmɪt /

UK / ˈlɪmɪt /

A2
  • noun
  • Point beyond which it is not possible to go
  • verb
  • To stop or prevent an increase past a point

yourself

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US / jɔ:ˈself /

UK / jʊrˈsɛlf, jɔr-, jor-, jə- /

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

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

unique

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US / jʊ'ni:k /

UK / juˈnik /

A2
  • adjecitve
  • Unlike other things; being the only one like it

association

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US / əˌsəʊʃɪ'eɪʃn /

UK / əˌsoʊʃi'eɪʃn /

B1
  • noun
  • Organization of people with the same interest

aid

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US / eɪd /

UK / ed /

A2
  • noun
  • Action of giving help to others
  • Money or help given to those who need it
  • verb
  • To help others and provide things

breakdown

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US / 'breɪkdaʊn /

UK / ˈbrekˌdaʊn /

B1
  • noun
  • When normal activity or behavior stops

insomnia

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US / ɪnˈsɒmniə /

UK / ɪnˈsɑ:mniə /

C1
  • noun
  • Inability to sleep for many nights

supportive

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US / səˈpɔ:tɪv /

UK / səˈpɔ:rtɪv /

B1
  • adjecitve
  • Providing help and support to someone or something

control

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US / kən'trəʊl /

UK / kənˈtrol /

A1
  • noun
  • A device designed to operate a machine
  • Participant in experiment that is left untouched
  • Act to dominate or command; make manageable
  • A law limiting the growth or spread of something
  • A place which overseas or manages e.g. a factory
  • verb
  • To direct or influence the behavior of something

dependent

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US / dɪˈpendənt /

UK / dɪˈpɛndənt /

A2
  • adjecitve
  • Someone who relies on (financial) support

hour

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US / 'aʊə(r) /

UK / aʊr /

A1
  • noun
  • 60 minutes
  • Particular time of the day
  • Fixed, regularly occurring time

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

unpleasant

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US / ʌnˈpleznt /

UK / ʌnˈplɛzənt /

B1
  • adjecitve
  • Causing a bad feeling in people
  • Being unfriendly; not nice

eight

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US / eɪt /

UK / et /

A1
  • number
  • 8

exploit

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US / ɪk'splɔɪt /

UK / ɪkˈsplɔɪt /

B1
  • noun
  • Personal journey or series of events
  • verb
  • To selfishly take advantage of or treat badly
  • To use something in a very effective manner

incredible

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US / ɪnˈkredəbl /

UK / ɪnˈkrɛdəbəl /

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

overall

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US / ˌəʊvər'ɔ:l /

UK / ˈovɚˌrɔl /

A2
  • adjecitve
  • Viewed as a whole; in general, not as details

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)

trauma

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US / 'trɔ:mə /

UK / ˈtraʊmə /

B2
  • noun
  • A very severe or upsetting experience
  • Serious injury to part of the body

depend

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US / dɪˈpend /

UK / dɪˈpend /

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

dependence

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US / dɪˈpendəns /

UK / dɪˈpɛndəns /

B1
  • noun
  • Relying on someone for (e.g. financial) support

difficult

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US / 'dɪfɪkəlt /

UK / ˈdɪfɪˌkʌlt, -kəlt /

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

responsible

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US / rɪ'spɒnsəbl /

UK / rɪˈspɑnsəbəl /

A2
  • adjecitve
  • Being the cause of something that has occurred
  • Having the duty of dealing with something
  • Able to be trusted to do what needs to be done

frequently

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US / ˈfri:kwəntli /

UK / ˈfrikwəntlɪ /

A2
  • adverb
  • Often; regularly

for

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US / fə(r) /

UK / fɔr,fə /

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

penetrate

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US / ˈpenɪtreɪt /

UK / ˈpɛnɪˌtret /

B1
  • verb
  • To enter or pass through something
  • To gain a market in a new area or country
  • To spread through many parts of something
  • To gain an understanding of something

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

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

why

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US / waɪ /

UK / hwaɪ, waɪ /

A1
  • adverb
  • Question word to ask for a reason
  • exclamation
  • (Used to express surprise or approval)

few

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US / fju: /

UK / fju /

A1
  • pronoun
  • Not many, a small number

extremely

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US / ɪkˈstri:mli /

UK / ɪk'strimlɪ /

B1
  • adverb
  • In a way that is much more than usual or expected

fact

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US / fækt /

UK / fækt /

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

strong

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US / strɒŋ /

UK / strɔŋ /

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

system

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US / 'sɪstəm /

UK / ˈsɪstəm /

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

access

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US / 'ækses /

UK / ˈæksɛs /

A2
  • noun
  • Way to enter a place, e.g. a station or stadium
  • verb
  • To be able to use or have permission to use

cortex

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US / 'kɔ:teks /

UK / ˈkɔrˌteks /

C1
  • noun
  • The outer part of an organ/structure, e.g. brain

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

energy

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US / 'enədʒɪ /

UK / ˈɛnədʒi /

A2
  • noun
  • Physical or mental strength

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

neurotransmitter

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US / ˈnjʊərəʊtrænzmɪtə(r) /

UK / ˌnʊroˈtrænsmɪtɚ, -ˈtrænz-, ˌnjʊr- /

A1
  • noun
  • Chemical released by nerves that boost signals within the body

require

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US / rɪ'kwaɪə(r) /

UK / rɪˈkwaɪr /

A2
  • verb
  • To demand that someone does something
  • To need to do something, to make it necessary

mix

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US / mɪks /

UK / mɪks /

A2
  • noun
  • A combination of more than two things
  • verb
  • To combine two or more things to make one
  • To meet and get along with others, e.g. at a party

sensitive

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US / 'sensətɪv /

UK / ˈsɛnsɪtɪv /

A2
  • adjecitve
  • Taking offense easily; easily upset or hurt
  • (Private information) needing careful treatment
  • Concerning awareness of small differences
  • Able to recognize the feelings of others
  • Responsive to physical touch
  • Becoming unstable

alter

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US / ˈɔ:ltə(r) /

UK / ˈɔltɚ /

A2
  • verb
  • To change so (clothing) fits better

delivery

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US / dɪˈlɪvəri /

UK / dɪˈlɪvəri, -ˈlɪvri /

A2
  • noun
  • Way someone acts when speaking publicly
  • Act of taking something to a person or place

example

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US / ɪgˈzɑ:mpl /

UK / ɪɡˈzæmpəl /

A1
  • noun
  • Thing, person which represents a category

each

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US / i:tʃ /

UK / itʃ /

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

track

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US / træk /

UK / træk /

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

disrupt

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US / dɪsˈrʌpt /

UK / dɪsˈrʌpt /

B2
  • verb
  • To cause a disturbance in an activity in progress

impact

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US / 'ɪmpækt /

UK / ˈɪmˌpækt /

A2
  • noun
  • A striking effect or result to hit with force
  • Very strong influence
  • Act or force of one thing hitting something else
  • verb
  • To hit or strike someone or something with force

impulsivity

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US / /

UK / /

A1

health

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US / helθ /

UK / hɛlθ /

A1
  • noun
  • (Person, company) being in a good condition; well

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

people

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US / 'pi:pl /

UK / ˈpipəl /

A1
  • noun
  • Persons sharing culture, country, background, etc.
  • Men, Women, Children

that

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US / ðæt /

UK / ðæt, ðət /

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

thirty

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US / 'θɜ:tɪ /

UK / ˈθə:ti /

A1
  • number
  • 30

advise

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US / ədˈvaɪz /

UK / ædˈvaɪz /

A2
  • verb
  • To suggest what would be helpful

cause

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US / kɔ:z /

UK / kɔz /

A2
  • noun
  • Belief, goal or organization that people support
  • Reason for
  • verb
  • To make something happen; create effect or result

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

similar

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US / ˈsɪmələ(r) /

UK / ˈsɪməlɚ /

A1
  • adjecitve
  • Nearly the same; alike

ultimately

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US / ˈʌltɪmətli /

UK / ˈʌltəmɪtli /

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

decrease

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US / dɪˈkri:s /

UK / dɪˈkris /

B1
  • noun
  • Amount by which something has been reduced
  • verb
  • To reduce the size, amount or number of something

enhance

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US / ɪn'hɑ:ns /

UK / ɛnˈhæns /

B1
  • verb
  • To improve; make bigger or better

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

actually

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US / ˈæktʃuəli /

UK / ˈæktʃuəli /

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

prioritize

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US / praɪˈɒrətaɪz /

UK / praɪˈɔ:rətaɪz /

B1
  • verb
  • To rank things in importance

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

four

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US / fɔ:(r) /

UK / fɔr, for /

A1
  • number
  • 4

hotline

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US / ˈhɒtlaɪn /

UK / ˈhɑtˌlaɪn /

C1
  • noun
  • Telephone line that gives direct, fast access

million

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US / ˈmɪljən /

UK / ˈmɪljən /

A1
  • number
  • 1,000,000

safe

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US / seɪf /

UK / sef /

A2
  • noun
  • Metal box with a lock to keep valuable things in
  • adjecitve
  • Highly likely
  • Being out of danger

area

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US / 'eərɪə /

UK / ˈɛriə /

A1
  • noun
  • Amount of measured space
  • A specific section or space; part of a region
  • A subject or field of study

feel

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US / fi:l /

UK / fil /

A1
  • verb
  • To be aware of or experience an emotion, sensation
  • To sense through direct contact; touch

inherit

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US / ɪn'herɪt /

UK / ɪnˈhɛrɪt /

B1
  • verb
  • To have a quality or feature passed down at birth
  • To receive property or money after someone dies
  • To receive something that belonged to someone else

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

always

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US / 'ɔ:lweɪz /

UK / ˈɔlwez,-wɪz,-wiz /

A1
  • adverb
  • For a very long time
  • At all times; in every situation
  • For ever

appear

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US / ə'pɪə(r) /

UK / əˈpɪr /

A1
  • verb
  • To be seen, become visible; come into sight
  • To seem to be
  • To act in a play, movie, or be mentioned in media

drug

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US / drʌɡ /

UK / drʌɡ /

A2
  • noun
  • Illegal substance taken for effect on the mind
  • Chemical used as a medicine
  • verb
  • To give drugs to someone to make them sleep

internationally

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US / ˌɪntə'næʃnəlɪ /

UK / ˌɪntɚˈnæʃənl:ɪ /

A2
  • adverb
  • Throughout the world or in many countries

many

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US / 'menɪ /

UK / ˈmɛni /

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

mode

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US / məʊd /

UK / moʊd /

A2
  • noun
  • Fashion and design
  • Status or way of functioning

reward

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US / rɪ'wɔ:d /

UK / rɪˈwɔrd /

A2
  • noun
  • Money given for information about criminals
  • verb
  • To give something because of someone's good work
  • To give someone money for helping the police
  • To give someone satisfaction for what they did

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

age

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US / eɪdʒ /

UK / edʒ /

A1
  • verb
  • To keep food, wine for a long time to improve it
  • To get older
  • noun
  • Period of time in history
  • Number of years a person or thing has lived

continue

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US / kən'tɪnju: /

UK / kənˈtɪnju /

A1
  • verb
  • To do something without stopping, or after pausing
  • To start doing again after a break, pause, or stop

consider

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US / kən'sɪdə(r) /

UK / kənˈsɪdər /

A1
  • verb
  • To think carefully about something

endorphin

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US / enˈdɔ:fɪn /

UK / enˈdɔ:rfɪn /

A1
  • noun
  • Neurochemical having analgesic properties

equilibrium

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US / ˌi:kwɪˈlɪbriəm /

UK / ˌikwəˈlɪbriəm, ˌɛkwə- /

C2
  • noun
  • A state of balance or harmony
  • Calm, quiet, undisturbed emotional state

someone

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US / ˈsʌmwʌn /

UK / ˈsʌmˌwʌn, -wən /

A1
  • pronoun
  • Person who is not known or named

certain

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US / ˈsə:tn /

UK / ˈsɚtn /

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

electronic

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US / ɪˌlek'trɒnɪk /

UK / ɪlɛkˈtrɑnɪk, ˌilɛk- /

A2
  • adjecitve
  • Operating by use of electricity; digital

develop

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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

gene

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US / dʒi:n /

UK / dʒin /

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

relieve

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US / rɪ'li:v /

UK / rɪˈliv /

B1
  • verb
  • To make less boring by making some change
  • To replace workers with others
  • To make a problem less difficult or serious
  • To reduce pain, stress or an unpleasant feeling

detox

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US / ˈdi:tɒks /

UK / ˈdi:tɑ:ks /

A1
  • noun
  • Hospital ward or clinic in which patients are detoxified

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

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

habit

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US / 'hæbɪt /

UK / ˈhæbɪt /

A2
  • noun
  • Loose clothing like a cloak, worn by monks, nuns
  • Usual way of behaving; something often repeated

necessary

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US / 'nesəsərɪ /

UK / ˈnɛsɪˌsɛri /

A1
  • adjecitve
  • Needed or required; unavoidable

understand

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US / ˌʌndə'stænd /

UK / ˌʌndɚˈstænd /

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

barrier

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US / 'bærɪə(r) /

UK / ˈbæriɚ /

B1
  • noun
  • Difficult situation preventing something happening
  • Structure or object that stops free movement

ability

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US / ə'bɪlətɪ /

UK / əˈbɪlɪti /

A2
  • noun
  • The power, resources or skill to do something

but

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US / bət /

UK / bʌt,bət /

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

especially

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US / ɪˈspeʃəli /

UK / ɛˈspɛʃəli, ɪˈspɛʃ- /

A1
  • adverb
  • More than usual; extremely

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

opioid

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US / /

UK / /

A1
  • adjecitve
  • Hallucinogenic narcotics, having similar effects to opium

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

signal

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US / 'sɪɡnəl /

UK / ˈsɪɡnəl /

A2
  • adjecitve
  • Most important or most noticeable
  • noun
  • Movement of a hand or other means to send messages
  • Act/sound that tells people to do/start something
  • Road-side lights that direct traffic to go or stop
  • Sound and light waves carrying TV and radio data
  • verb
  • To be evidence/an indication something will happen
  • To make a noise or motion to tell someone to start

effect

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US / ɪ'fekt /

UK / ɪˈfɛkt /

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

pattern

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US / 'pætn /

UK / ˈpætən /

A2
  • noun
  • Model to follow in making or doing something
  • Colors or shapes which are repeated on objects
  • Regular repeated behavior
  • verb
  • To copy the way something else is made

pleasure

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US / 'pleʒə(r) /

UK / ˈplɛʒɚ /

A2
  • noun
  • Feeling of happiness, enjoyment, or satisfaction

support

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US / səˈpɔ:t /

UK / səˈpɔrt, -ˈport /

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

anxiety

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US / æŋ'zaɪətɪ /

UK / æŋˈzaɪɪti /

B1
  • noun
  • Fear about what might happen; worry

calm

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US / kɑ:m /

UK / kɑm /

A2
  • adjecitve
  • Without wind or storm; quiet; peaceful
  • Relaxed and not worried or angry
  • verb
  • To make or become relaxed and not worried or angry

seven

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US / ˈsevn /

UK / ˈsɛvən /

A1
  • number
  • Number 7

span

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US / spæn /

UK / spæn /

B1
  • noun
  • Distance between two supports of a bridge
  • Period of time that something continues for
  • other
  • Periods of time that something continues for
  • verb
  • To go across a certain distance between things
  • To cover or extend over a time period

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

behaviour

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US / bɪˈheɪvjə(r) /

UK / bɪˈhevjɚ /

A1
  • noun
  • The way a person or thing acts; manner

become

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US / bɪ'kʌm /

UK / bɪˈkʌm /

A1
  • verb
  • To begin to be; grow to be; develop into
  • To be suitable for a particular job or role

same

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US / seɪm /

UK / sem /

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

tolerance

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US / ˈtɒlərəns /

UK / ˈtɑ:lərəns /

B1
  • noun
  • Ability to adjust to changes, your environment etc.
  • The space between metal objects e.g. in engines
  • Ability to survive in a difficult environment
  • Willingness to let others think or do as they wish

slow

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US / sləʊ /

UK / sloʊ /

A1
  • adjecitve
  • Lacking activity, busyness or excitement
  • (Clock) showing time earlier than the actual time
  • Having difficulty understanding simple things
  • Moving or happening without speed; not fast
  • verb
  • To move, with less speed than before
  • To move or go without much speed

deliver

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US / dɪ'lɪvə(r) /

UK / dɪˈlɪvɚ /

A2
  • verb
  • To give birth to a child; help a woman give birth
  • To save someone from a problem or crisis
  • To keep a promise; do what you say you would
  • To present something to a group, as a speech
  • To take something to a person or place

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

decision

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US / dɪ'sɪʒn /

UK / dɪˈsɪʒən /

A1
  • noun
  • Choice made after thinking; final judgment
  • Ability to make quick and confident choices

experience

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US / ɪk'spɪərɪəns /

UK / ɪkˈspɪriəns /

A1
  • noun
  • Thing a person has done or that happened to them
  • An event at which you learned something
  • Knowledge gained by living life, doing new things
  • verb
  • To gain knowledge by doing things

operate

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US / ˈɒpəreɪt /

UK / ˈɑ:pəreɪt /

A1
  • verb
  • To control or handle something, such as a machine
  • To control or manage something such as a business
  • To be working or being used
  • To perform surgery on someone

recovery

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US / rɪˈkʌvəri /

UK / rɪˈkʌvəri /

A2
  • noun
  • Process of returning to a former (good) state
  • Act of getting back something that was lost

structure

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US / ˈstrʌk.tʃə /

UK / ˈstrʌk.tʃɚ /

A2
  • noun
  • The way in which the parts of a system or object are arranged or organized, or a system arranged in
  • verb
  • To plan, organize, or arrange the parts of something

deliberate

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US / dɪ'lɪbərət /

UK / dɪˈlɪbərɪt /

B2
  • adjecitve
  • Carefully thought out in advance
  • Done purposely
  • verb
  • To consider a problem or decision carefully

mood

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US / mu:d /

UK / mud /

A1
  • noun
  • Emotion or a state of mind; how you feel

abuse

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US / ə'bju:s /

UK / əˈbjuz /

A2
  • noun
  • Improper/dishonest/excessive use of something
  • Insulting someone, e.g. by swearing at them
  • verb
  • To mistreat or be cruel towards someone
  • To use in an inappropriate or excessive way
  • To use something wrongly or dishonestly
  • To insult someone or swear at them

eighteen

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US / ˌeɪˈti:n /

UK / eˈtin /

A1
  • number
  • 18

act

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US / ækt /

UK / ækt /

A1
  • noun
  • What someone did; action; behavior
  • A law or rule passed by a government we must obey
  • One of the parts that a stage play is divided into
  • verb
  • To behave in a certain way
  • To perform on a stage or in a movie

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

regular

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US / ˈregjələ(r) /

UK / ˈrɛɡjəlɚ /

A2
  • adjecitve
  • Having an equal amount of space or time in between
  • Occurring or being done frequently
  • Being normal, usual, or average
  • noun
  • Customers who frequently visit a place
  • Soldier who has a permanent job in the army

underlie

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US / ˌʌndəˈlaɪ /

UK / ˌʌndərˈlaɪ /

B1
  • verb
  • To be the basis, foundation or cause of something
  • To lie or exist beneath

crucial

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US / 'kru:ʃl /

UK / ˈkruʃəl /

B1
  • adjecitve
  • Extremely important or necessary

link

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US / lɪŋk /

UK / lɪŋk /

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

take

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US / teɪk /

UK / tek /

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

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

fast

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US / fɑ:st /

UK / fæst /

A1
  • adjecitve
  • In a way that is difficult to move or change
  • Moving or able to move quickly
  • Showing time that is later than the actual time
  • adverb
  • With a great deal of speed
  • noun
  • Period of time when a person chooses not to eat
  • verb
  • To refuse food for a long time

its

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US / ɪts /

UK / ɪts /

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

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

receptor

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US / rɪˈseptə(r) /

UK / rɪˈseptər /

B2
  • noun
  • A nerve ending that changes stimuli into impulses

account

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US / ə'kaʊnt /

UK / əˈkaʊnt /

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

stimulate

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US / 'stɪmjʊleɪt /

UK / ˈstɪmjəˌlet /

B1
  • verb
  • To arouse or excite emotionally

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

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

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

alcohol

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US / 'ælkəhɒl /

UK / ˈælkəˌhɔl,-ˌhɑl /

B1
  • noun
  • A colorless liquid that can catch fire (C2H5OH)
  • Drinks such as wine, whiskey, beer

change

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US / tʃeɪndʒ /

UK / tʃendʒ /

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

comfortably

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US / ˈkʌmftəbli /

UK / ˈkʌmfɚtəblɪ /

A2
  • adverb
  • Having more than enough e.g. money for your needs
  • Not being worried about something; at ease

pathway

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US / ˈpɑ:θweɪ /

UK / ˈpæθˌwe, ˈpɑθ- /

B1
  • noun
  • A path or way that you can walk

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

due

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US / dju: /

UK / du, dju /

A1
  • adjecitve
  • When something is required or expected
  • Owed to a person as a right
  • noun
  • Something you deserve; something you can expect

quit

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US / kwɪt /

UK / kwɪt /

B1
  • other
  • To leave a school etc. without finishing
  • verb
  • To leave a job
  • To leave a place
  • To leave a school etc. without finishing
  • To end an action or activity

their

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US / ðɛː /

UK / ðer /

A1
  • determiner
  • Belonging to them

addictive

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US / əˈdɪktɪv /

UK / əˈdɪktɪv /

B1
  • adjecitve
  • Being powerless to stop doing or using something

free

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US / fri: /

UK / fri /

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

gum

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US / ɡʌm /

UK / ɡʌm /

B2
  • noun
  • Soft sweet candy you chew
  • Flesh inside the mouth that holds the teeth
  • Sticky substance that comes out of some trees
  • other
  • Adhesive material used to stick things together
  • verb
  • To cover or stick with adhesive

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

play

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US / pleɪ /

UK / pleɪ /

A1
  • noun
  • Loose, free movement between two objects
  • Single action in a sports game
  • Performance in which people act in a theater
  • verb
  • To act as a character in a movie, or on stage
  • To perform music on an instrument
  • To use a device, e.g. a video game
  • To do something for enjoyment and fun
  • To do or perform a game or sport

predetermine

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US / ˌpri:dɪˈtɜ:mɪn /

UK / ˌpri:dɪˈtɜ:rmɪn /

C2
  • verb
  • To decide or determine ahead of time

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

adapt

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US / ə'dæpt /

UK / əˈdæpt /

B1
  • verb
  • To change something for a different function
  • To change something to fit or suit a new purpose

adjust

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US / əˈdʒʌst /

UK / əˈdʒʌst /

A2
  • verb
  • To change; to attain a desired state or function
  • To change so as to fit in with new conditions

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

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

motivate

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US / 'məʊtɪveɪt /

UK / ˈmotəˌvet /

A2
  • verb
  • To give someone a reason, the will to do something

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

treat

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US / tri:t /

UK / trit /

A1
  • noun
  • Something you buy for others as a surprise present
  • something that tastes good and that is not eaten often
  • verb
  • To pay for the food or enjoyment of someone else
  • To use medical methods to try to cure an illness
  • To act in a certain way toward someone

heighten

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US / 'haɪtn /

UK / ˈhaɪtn /

B1
  • verb
  • To increase the degree or intensity of something

lead

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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

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

receive

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US / rɪ'si:v /

UK / rɪˈsiv /

A1
  • verb
  • To get something someone has given or sent to you
  • To allow someone to become a member (of a club)
  • To welcome someone as a guest into your home
  • To respond to (e.g. news) in a particular way

seek

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US / si:k /

UK / sik /

A2
  • verb
  • To ask someone for help
  • To search for; try to find or do; look for
  • To try to achieve something

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

vary

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US / ˈveəri /

UK / ˈveri /

A2
  • verb
  • To change something and make it different
  • To be changeable, both up and down

chemical

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US / ˈkemɪkl /

UK / ˈkɛmɪkəl /

A2
  • adjecitve
  • Made of various elements
  • noun
  • Basic substance produced by mixing elements

essential

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US / ɪ'senʃl /

UK / ɪˈsɛnʃəl /

A2
  • adjecitve
  • Extremely or most important and necessary

crave

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US / kreɪv /

UK / krev /

B2
  • verb
  • To have a very strong desire for something

diminish

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US / dɪˈmɪnɪʃ /

UK / dɪˈmɪnɪʃ /

B1
  • verb
  • To make something smaller or less important
  • To imply someone's reputation is less good
  • To become or cause to become less in size, value

genetic

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US / dʒəˈnetɪk /

UK / dʒəˈnɛtɪk /

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

state

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US / steɪt /

UK / stet /

A1
  • adjecitve
  • Concerning region within a country
  • noun
  • Region within a country, with its own government
  • Situation or condition something is in
  • verb
  • To say; declare as fact

less

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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

specific

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US / spəˈsɪfɪk /

UK / spɪˈsɪfɪk /

A2
  • adjecitve
  • Precise; particular; just about that thing
  • Concerning one particular thing or kind of thing

cigarette

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US / ˌsɪgəˈret /

UK / ˈsɪgəret /

B1
  • noun
  • White paper tube filled with tobacco

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

than

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US / ðən /

UK / ðən /

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

also

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US / 'ɔ:lsəʊ /

UK / ˈɔlso /

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

five

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US / faɪv /

UK / faɪv /

A1
  • number
  • 5

facet

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US / 'fæsɪt /

UK / ˈfæsɪt /

B2
  • noun
  • A part of something; aspect
  • Flat surface on an object with many flat surfaces

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)

vape

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US / /

UK / /

A1
  • intransitive verb
  • Inhale and exhale vapor containing nicotine and flavoring produced by a device designed for this pur
  • noun
  • A device used for inhaling vapor containing nicotine and flavoring.

year

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US / jə: /

UK / jɪr /

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

you

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US / jʊ /

UK / ju /

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

before

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US / bɪˈfɔ:(r) /

UK / bɪˈfɔr,-ˈfor /

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

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

mechanism

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US / 'mekənɪzəm /

UK / ˈmɛkəˌnɪzəm /

B1
  • noun
  • Part of a machine that performs a certain function
  • System or process for achieving a certain result

plan

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US / plæn /

UK / plæn /

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

presence

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US / ˈprezns /

UK / ˈprɛzəns /

A2
  • noun
  • The same place or area that a person is
  • Ability to reach a market, group of people etc.
  • Something not physically seen but felt to be there
  • Feeling a person gives by being noticeable

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

substance

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US / 'sʌbstəns /

UK / ˈsʌbstəns /

A2
  • noun
  • Essence of; most basic or central qualities
  • Particular type of material
  • Having material form; existing
  • Quality of truth, importance, or meaningfulness

six

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US / sɪks /

UK / sɪks /

A1
  • number
  • 6

without

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US / wɪˈðaʊt /

UK / wɪðˈaʊt, wɪθ- /

A1
  • preposition
  • Not with; not having

blood

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US / blʌd /

UK / blʌd /

A2
  • adjecitve
  • Related by birth; family
  • noun
  • Red liquid in the bodies of people and animals
  • verb
  • To be initiated into something, e.g. a secret club

estimate

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US / 'estɪmət /

UK / ˈɛstəˌmet /

A2
  • noun
  • Guess or calculation of cost, size or value
  • verb
  • To guess or calculate the cost, size or value of

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

hundred

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US / 'hʌndrəd /

UK / ˈhʌndrɪd /

A1
  • number
  • 100

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

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

gaba

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US / ˈgɑbə /

UK / ˈɡæbə /

A1
  • abbreviation
  • GABA is an acronym

morphine

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US / 'mɔ:fi:n /

UK / ˈmɔrˌfin /

C1
  • noun
  • Alkaloid narcotic drug extracted from opium

resistant

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US / rɪˈzɪstənt /

UK / rɪˈzɪstənt /

A2
  • adjecitve
  • Not affected by something
  • Being opposed to or wanting to prevent something

sedation

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US / sɪˈdeɪʃn /

UK / sɪˈdeʃən /

B2
  • noun
  • Giving drugs to so as to induce reduced anxiety

increase

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US / ɪn'kri:s /

UK / ɪnˈkris /

A1
  • noun
  • Fact of increasing; amount something grows by
  • verb
  • To make or become larger in size or amount

smoke

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US / sməʊk /

UK / smoʊk /

B1
  • noun
  • Grey gas from fires and cigarettes
  • Fog of air coming from e.g. a cigarette, fire
  • verb
  • To give off a cloud of grey gas from burning
  • To add a taste to food by putting it near a fire
  • To breathe in through a cigarette, etc.

impulsive

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US / ɪmˈpʌlsɪv /

UK / ɪmˈpʌlsɪv /

B2
  • adjecitve
  • Acting without really thinking about it; rash

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

scientist

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US / ˈsaɪəntɪst /

UK / ˈsaɪəntɪst /

A2
  • noun
  • Person who is trained in a science

worldwide

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US / ˈwɜ:ldwaɪd /

UK / ˈwɚldˈwaɪd /

B1
  • adjecitve
  • Spanning or extending throughout the entire world
  • adverb

often

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US / ˈɔfən /

UK / ˈɔfən,ˈɑfən,ˈɔftən,ˈɑf- /

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

repeat

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US / rɪˈpi:t /

UK / rɪˈpit /

A2
  • noun
  • Action that is done again
  • Musical passage that is to be played again
  • Radio or television program that was shown before
  • verb
  • To do something over again
  • To say something you have learned and memorized
  • To relate something you have been told by another
  • To say something again

suffer

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US / 'sʌfə(r) /

UK / ˈsʌfɚ /

A2
  • verb
  • To experience pain, illness, or injury

dopamine

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US / 'dəʊpəmi:n /

UK / 'doʊpəmi:n /

A1
  • noun
  • Drug used to treat shock and hypotension

instance

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US / 'ɪnstəns /

UK / ˈɪnstəns /

A2
  • noun
  • An example of something; case
  • verb
  • To give as an example of something else

patch

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US / pætʃ /

UK / pætʃ /

B1
  • noun
  • Cover worn over an eye to protect or hide it
  • Piece of ground on vegetation grows
  • Piece of cloth sewn onto garments to repair holes
  • Small spot different from the area around it
  • verb
  • To join or unite, e.g. two phone calls
  • To repair hole by sewing a piece of cloth over it

process

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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

transmission

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US / trænsˈmɪʃn /

UK / trænsˈmɪʃən, trænz- /

B1
  • noun
  • Part of car including gears affecting speed of car
  • Electronic signal sent by radio waves; broadcast
  • Transfer of data from one machine to another
  • Transfer of money to another person or place
  • Act or process of transferring something to others

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

environment

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US / ɪn'vaɪrənmənt /

UK / ɛnˈvaɪrənmənt, -ˈvaɪən- /

A1
  • noun
  • Natural world in which plants and animals live
  • The entire surrounding conditions of something

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

mental

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US / ˈmentl /

UK / ˈmɛntl /

A2
  • adjecitve
  • Concerning the mind

nicotine

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US / ˈnɪkəti:n /

UK / ˈnɪkəˌtin /

C1
  • noun
  • Addictive substance in tobacco

region

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US / 'ri:dʒən /

UK / ˈridʒən /

A2
  • noun
  • Part of a country, of the world, area, etc.

beyond

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US / bɪ'jɒnd /

UK / biˈɑnd, bɪˈjɑnd /

A2
  • adverb
  • On or to the farther side
  • In addition to
  • preposition
  • Later in time than
  • Out of the limits of

affect

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US / ə'fekt /

UK / əˈfɛkt /

A2
  • verb
  • To cause a change in something else

release

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US / rɪ'li:s /

UK / rɪ'li:s /

A2
  • noun
  • Act of freeing someone from a duty or burden
  • Introduction of a new product, film, book, etc.
  • Relief from sadness, suffering or trouble
  • Act of freeing from a jail, cage, prison, etc.
  • verb
  • To free someone from a responsibility or burden
  • To allow a film, music etc. to be sold/distributed
  • To allow to leave a jail, cage, etc.; let out
  • To let go of something you are holding

spectrum

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US / 'spektrəm /

UK / ˈspɛktrəm /

B1
  • noun
  • The wavelengths of colors from red to violet
  • a range of different positions, opinions, etc. between two extreme points

two

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US / tu: /

UK / tu /

A1
  • number
  • 2

abruptly

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US / ə'brʌptlɪ /

UK / ə'brʌptlɪ /

B1
  • adverb
  • Suddenly; without warning

genetically

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US / dʒə'netɪklɪ /

UK / dʒə'netɪklɪ /

B1
  • adverb
  • Caused or controlled, or by genes

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

nucleus

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US / ˈnju:kliəs /

UK / ˈnu:kliəs /

B2
  • noun
  • Center of an atom
  • Control center of a cell
  • Most important part of something larger

trait

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US / treɪt /

UK / tret /

C2
  • noun
  • A particular characteristic that can produce a particular type of behavior

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

from

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US / frəm /

UK / frʌm, frɑm,frəm /

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

out

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US / aʊt /

UK / aʊt /

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

over

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US / 'əʊvə(r) /

UK / ˈovɚ /

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

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

sensation

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US / sen'seɪʃn /

UK / sɛnˈseʃən /

B1
  • noun
  • (Person) attracting the interest of many people
  • Mental feeling caused by a previous experience
  • A feeling experienced by the body e.g. touch

drink

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US / drɪŋk /

UK / drɪŋk /

A1
  • noun
  • A liquid that you put in your mouth
  • verb
  • To put water in your body through your mouth

and

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US / ənd /

UK / ənd, ən,ænd /

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

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

administration

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US / ədˌmɪnɪˈstreɪʃn /

UK / ædˌmɪnɪˈstreʃən /

B1
  • noun
  • Act of giving e.g. medicine to a patient
  • The work of running something, e.g. a business
  • People managing a business, government etc.
  • Subtitles section
  • As of the year of the year, more than thirty six million people worldwide were estimated to be experiencing substance abuse disorder.
  • This condition spans a spectrum of patterned drug use that causes issues in a person's life.
  • At the more severe end of the spectrum is substance addiction.
  • To understand why some people are more susceptible to addiction and why it can be so difficult to treat, let's take a look at how addictive drugs affect the body.
  • When someone repeatedly uses an addictive substance, their brain may adjust to account for its regular presence.
  • This is called tolerance.
  • It diminishes the drug's effect and means more is required to produce the same experience.
  • Alcohol, for instance, increases the transmission of chemical messengers like endorphin and GABA, which promote sensations of pleasure and calmness.
  • When someone uses alcohol frequently, their brain will adapt to its presence.
  • So when they don't use it, their brain receives fewer signals from those pleasure and calm inducing neurotransmitters, which impacts their energy and mood.
  • In addition to the unique effects each addictive substance has, all of them alter the release of dopamine in a brain region called the nucleus accumbens.
  • This area is part of the brain's reward pathway, which is sensitive to experiences that give us pleasure and drives us to repeatedly seek them out.
  • The reward pathway is essential to our well being, but addictive substances also exploit it.
  • When someone is repeatedly using a substance and their body has adapted to its presence, they may develop dependence, where the drug is necessary for them to function comfortably.
  • Meanwhile, repeated use can decrease the influence of the brain's cortex, which is responsible for driving deliberate decision making and limiting impulsive behaviors.
  • And it can increase the influence of the brain's subcortex, which is crucial in habit learning and impulsivity.
  • Together, these changes can make someone feel a lack of control over how they're using a substance.
  • This can mean suffering in other facets of their life, and taking risks to continue using it.
  • If the substance leaves their system, their body's equilibrium is disrupted, so they may experience cravings that motivate thoughts and behaviors of seeking and using the drug.
  • And if they continue without the substance, they may experience withdrawal.
  • Opioids, for example, relieve pain and induce sedation.
  • Withdrawal from them causes heightened pain, anxiety, and insomnia.
  • The faster a drug reaches the brain and stimulates the reward pathway, the more addictive it is.
  • For example, heroin and morphine have similar effects, but heroin's chemical structure enhances its ability to penetrate the blood brain barrier and bind to specific receptors.
  • This makes it faster acting and more addictive than morphine.
  • Meanwhile, compared to nicotine patches and gum, regular and electronic cigarettes are more addictive, because smoking and vaping deliver nicotine to the brain fastest.
  • Depending on their chemical structure and mode of delivery, drugs vary in how addictive they are.
  • But people also vary in how susceptible they are to substance use disorder.
  • Scientists think this is due to a mix of life experiences and genetically inherited traits, though neither predetermines addiction.
  • Trauma and mental health conditions appear to make people more susceptible.
  • And overall, using addictive substances before age of eighteen is considered a strong risk factor.
  • This is in part because the reward pathways of younger brains are especially sensitive.
  • Many of the genetic factors at play remain unknown, but some genes do seem to track with certain substance use disorders.
  • For example, specific genes increase the risk for nicotine addiction by making certain receptors more sensitive to nicotine, and withdrawal from it more difficult.
  • At the same time, some genes actually make people more resistant to substance use disorders,
  • such as genes that slow the breakdown of alcohol, leading to unpleasant side effects that make people less interested in drinking.
  • In fact, one drug that treats alcohol use disorder operates with this very mechanism.
  • Detoxing from a substance the body has become dependent on can be extremely difficult, and in some cases, abruptly quitting can also be physically risky, so it isn't always advised.
  • Beyond detoxing, quitting is often a long term process.
  • It's aided by treatment plans that prioritize addressing underlying conditions, developing new associations with experiences previously linked with drug use, and creating safe, supportive environments.
  • Ultimately, both addiction and recovery are the results of a brain with an incredible ability to adapt from experience.
  • If you're interested in accessing resources for yourself or others, you can find free substance use support groups internationally through aa.org, na.org, or smartrecovery.org.
  • And if you're in the United States, the Substance Abuse and Mental Health Services Administration also has a twenty four hour hotline you can call at eight hundred six six two four three five seven.