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What does our Liver Do? + more videos | #aumsum #kids #science #education #whatif

Video vocabulary

our

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US / 'aʊə(r) /

UK / aʊr /

A1
  • determiner
  • Belonging to us

stomach

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US / 'stʌmək /

UK / ˈstʌmək /

A2
  • noun
  • Place in the body where food is processed
  • verb
  • to be able to accept something unpleasant

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

tightness

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US / taɪtnəs /

UK / taɪtnəs /

B1
  • noun
  • Lack of movement or room for movement

protein

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US / ˈprəʊti:n /

UK / ˈprəʊˌtiːn /

B1
  • noun
  • Group of molecules made from amino acids

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

straighten

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US / 'streɪtn /

UK / ˈstretn /

A2
  • verb
  • To make or become straight

follicle

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US / ˈfɒlɪkl /

UK / ˈfɑlɪkəl /

C1
  • noun
  • Small spherical group of cells containing a cavity

enter

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US / 'entə(r) /

UK / ˈɛntɚ /

A1
  • verb
  • To start a career or an education
  • To become a competitor in a contest
  • To add or type information in a computer
  • To go into a room, building etc.

usually

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US / ˈju:ʒuəli /

UK / ˈjuːʒuəli /

A1
  • adverb
  • Normally; regularly

carry

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US / ˈkæri /

UK / ˈkæri /

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

not

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US / nɒt /

UK / nɑt /

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

attach

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US / ə'tætʃ /

UK / əˈtætʃ /

A2
  • verb
  • To be associated or connected with

please

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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

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

hollow

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US / ˈhɒləʊ /

UK / ˈhɑ:loʊ /

B1
  • adjecitve
  • (Of objects) having nothing inside; not solid
  • Lacking value, sincerity, or meaning
  • (E.g. of a laugh) lacking strength and emotion
  • (Sound) produced when something empty is hit
  • Appearing sunken or curved down
  • noun
  • Gap or indented surface
  • Area of land a little deeper than the surface
  • verb
  • To make a solid object have a large hole inside it

now

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US / naʊ /

UK / naʊ /

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

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

meal

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US / mi:l /

UK / mil /

A1
  • noun
  • Food for eating at a particular time, e.g. dinner
  • Grain that has been ground into a powder

convert

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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

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

nerve

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US / nə:v /

UK / nɚv /

A2
  • noun
  • Fibers in the body that enable feeling, movement
  • Courage to do something that is difficult or risky

sunburn

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US / ˈsʌnbɜ:n /

UK / ˈsʌnbɜ:rn /

C2
  • noun
  • Burning your skin by being in the sun too long

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

smell

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US / smel /

UK / smɛl /

A2
  • noun
  • Ability to notice a particular odor
  • A particular odor
  • verb
  • To have a particular odor
  • To sense that something is not right
  • To notice a particular odor
  • To use the nose to sense something

food

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US / fu:d /

UK / fud /

A1
  • noun
  • What people and animals eat to live
  • Things taken in by plants to maintain life
  • A particular style or type of cooking, e.g. Asian

consciousness

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US / 'kɒnʃəsnəs /

UK / ˈkɑnʃəsnɪs /

A2
  • noun
  • Process by which thoughts, ideas are processed

but

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US / bət /

UK / bʌt,bət /

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

prevent

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US / prɪ'vent /

UK / prɪˈvɛnt /

A2
  • verb
  • To stop something from happening or existing

apply

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US / ə'plaɪ /

UK / əˈplaɪ /

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

quite

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US / kwaɪt /

UK / kwaɪt /

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

liver

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US / ˈlɪvə(r) /

UK / ˈlɪvɚ /

B1
  • noun
  • Organ from animals served as food
  • Organ that absorbs food and cleans the blood

perform

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US / pə'fɔ:m /

UK / pɚˈfɔrm /

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

feeling

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US / ˈfi:lɪŋ /

UK / ˈfilɪŋ /

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

helpful

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US / ˈhelpfl /

UK / ˈhɛlpfəl /

A2
  • adjecitve
  • Doing things that help someone

faint

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US / feɪnt /

UK / fent /

A2
  • adjecitve
  • Lacking strength; weak; lacking clarity
  • Very small, as in a chance or hope
  • verb
  • To suddenly become unconscious and fall down

inflame

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US / ɪnˈfleɪm /

UK / ɪnˈflem /

B1
  • verb
  • To cause to get angry or excited
  • To set on fire
  • To make your skin become red and painful

themselves

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US / ðəmˈselvz /

UK / ðɛmˈsɛlvz, ðəm- /

A1
  • pronoun
  • Reflexive form of 'they'

besides

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US / bɪˈsaɪdz /

UK / bɪˈsaɪdz /

A2
  • adverb
  • Other than or in addition to

breathe

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US / bri:ð /

UK / brið /

A2
  • verb
  • To move air into and out of your lungs
  • To say something very softly
  • To stop moving so one can rest

especially

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US / ɪˈspeʃəli /

UK / ɛˈspɛʃəli, ɪˈspɛʃ- /

A1
  • adverb
  • More than usual; extremely

keep

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US / ki:p /

UK / kip /

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

escape

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US / ɪ'skeɪp /

UK / ɪˈskep /

A2
  • noun
  • Act to briefly ignoring boring or bad things
  • The 'esc key' on a keyboard
  • Act of getting away from where you are being kept
  • verb
  • To avoid something undesirable, dangerous or bad
  • To get away from a place where you are being kept
  • (Gas, water) to come out from a pipe, container
  • To not to be noticed or remembered by someone

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

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

normally

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US / ˈnɔ:məli /

UK / ˈnɔːrməli /

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

region

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US / 'ri:dʒən /

UK / ˈridʒən /

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

radiation

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US / ˌreɪdiˈeɪʃn /

UK / ˌrediˈeʃən /

B1
  • noun
  • Energy transmitted as rays, waves or particles
  • Process of emitting something in waves
  • Harmful waves of energy from nuclear activity

mostly

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US / ˈməʊstli /

UK / ˈmoʊstli /

A2
  • adverb
  • In large part; mainly or chiefly

rest

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US / rest /

UK / rɛst /

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

come

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US / kʌm /

UK / kʌm /

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

name

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US / neɪm /

UK / nem /

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

swallow

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US / 'swɒləʊ /

UK / ˈswɑː.loʊ /

A2
  • noun
  • Small northern bird with downward-pointing wings
  • Making food or drink go down to the stomach
  • verb
  • To believe (something that is not true)
  • To make food go from your mouth to your stomach
  • To cover or hide something

form

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US / fɔ:m /

UK / fɔrm /

A1
  • noun
  • Sports team or person's current winning record
  • Document you complete when making an application
  • Visible shape or style; type; kind
  • verb
  • To organize something such as a club or group
  • To develop; to come into a shape or substance
  • To make something into a particular shape

brush

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US / brʌʃ /

UK / brʌʃ /

A2
  • noun
  • Quick and gentle movement
  • Thing with hairs used to apply paint, etc.
  • Thing used to comb your hair or to clean the floor
  • verb
  • To touch against a thing very lightly when moving
  • To clean, paint, or apply something with a brush
  • To clean using a long stick with stiff hairs

cancer

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US / 'kænsə(r) /

UK / ˈkænsɚ /

B1
  • noun
  • Any growth caused by abnormal cell division

from

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US / frəm /

UK / frʌm, frɑm,frəm /

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

far

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US / fɑ:(r) /

UK / fɑr /

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

completely

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US / kəmˈpli:tli /

UK / kəmˈpliːtli /

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

skin

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US / skɪn /

UK / skɪn /

A2
  • noun
  • Outer covering of an animal used for leather; hide
  • Outer covering of a fruit or vegetable
  • Outer layer of an animal or human
  • Outer part of an object, such as a plane
  • verb
  • To defeat someone easily and completely
  • To hurt yourself, accidentally cutting yourself
  • To remove the outer covering from an animal

hair

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US / heə(r) /

UK / her /

A1
  • noun
  • Long thin strands growing on your head or body
  • Short distance; a very small amount

malfunction

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US / ˌmæl'fʌŋkʃn /

UK / mælˈfʌŋkʃən /

C1
  • noun
  • A failure of something to work properly
  • verb
  • To fail to work correctly

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

help

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US / help /

UK / hɛlp /

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

absorption

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US / əbˈsɔ:pʃn /

UK / əbˈsɔ:rpʃn /

B2
  • noun
  • Process of being absorbed e.g. liquid, attention

asthma

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US / ˈæsmə /

UK / ˈæzmə, ˈæs- /

B2
  • noun
  • Lung illness causing difficulty in breathing

temperature

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US / ˈtemprətʃə(r) /

UK / ˈtɛmpərəˌtʃʊr,-tʃɚ,ˈtɛmprə- /

A2
  • noun
  • When you your body heat is above normal
  • How hot or cold something is, e.g. the weather

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

detect

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US / dɪˈtekt /

UK / dɪˈtɛkt /

A2
  • verb
  • To discover or identify the presence of something

tube

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US / tju:b /

UK / tub,tjub /

B1
  • noun
  • Plastic or metal container for soft substances
  • Long hollow pipe used to hold or liquids or gases

prepare

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US / prɪˈpeə(r) /

UK / prɪˈper /

A1
  • verb
  • To make something ready for use

digestive

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US / daɪˈdʒestɪv /

UK / daɪˈdʒɛstɪv, dɪ- /

B2
  • adjecitve
  • Concerning processes of converting food to energy

most

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US / məʊst /

UK / most /

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

sometimes

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US / ˈsʌmtaɪmz /

UK / ˈsʌmˌtaɪmz /

A1
  • adverb
  • Only at certain times; occasionally

maintain

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US / meɪn'teɪn /

UK / menˈten /

A2
  • verb
  • To keep saying something a certain way
  • To keep (machine) working by checking, repairing
  • To keep, exist or continue without changing

two

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US / tu: /

UK / tu /

A1
  • number
  • 2

breath

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US / breθ /

UK / brɛθ /

A2
  • noun
  • Air you take in and out of your body

hot

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US / hɒt /

UK / hɑ:t /

A1
  • adjecitve
  • Angry or excited
  • Being very good at something
  • Having a high temperature
  • Popular and causing a great deal of excitement
  • Attractive in a sexually exciting way
  • (Of food) very spicy
  • Stolen; dangerous to buy or trade in

along

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US / əˈlɒŋ /

UK / əˈlɔ:ŋ /

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

stabilize

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US / 'steɪbəlaɪz /

UK / ˈstebəˌlaɪz /

B1
  • verb
  • To make stable/consistent, with no major changes

shiver

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US / ˈʃɪvə(r) /

UK / ˈʃɪvɚ /

C1
  • noun
  • Act of shaking from fear or cold
  • verb
  • To shake from fear or cold

back

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US / bæk /

UK / bæk /

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

asthmatic

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US / æzˈmætɪk /

UK / æzˈmætɪk /

B2
  • adjecitve
  • Breathing with difficulty because of asthma
  • noun
  • Someone suffering from asthma

lot

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US / lɒt /

UK / lɑt /

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

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

reduce

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US / rɪ'dju:s /

UK / rɪˈdus, -ˈdjus /

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

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

invader

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US / ɪnˈveɪdə(r) /

UK / ɪnˈvedɚ /

B1
  • noun
  • Someone who enters to cause harm

affect

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US / ə'fekt /

UK / əˈfɛkt /

A2
  • verb
  • To cause a change in something else

characteristic

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US / ˌkærəktəˈrɪstɪk /

UK / ˌkærəktəˈrɪstɪk /

A2
  • adjecitve
  • Typical or distinctive

pollen

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US / ˈpɒlən /

UK / ˈpɑ:lən /

B2
  • noun
  • Fine, usually yellow powder produced by plants

any

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US / 'enɪ /

UK / ˈɛni /

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

million

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US / ˈmɪljən /

UK / ˈmɪljən /

A1
  • number
  • 1,000,000

tobacco

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US / tə'bækəʊ /

UK / təˈbæko /

B1
  • noun
  • Cigars and cigarettes
  • Plant used to make cigars and cigarettes

supply

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US / sə'plaɪ /

UK / səˈplaɪ /

A2
  • noun
  • Availability of products and services for use
  • Specific things needed to perform a certain task
  • verb
  • To give or sell goods to others for their use

separate

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US / 'sepəreɪt /

UK / 'sepəreɪt /

A2
  • adjecitve
  • Being different from or unrelated to another
  • verb
  • To divide two things by being in between them
  • To live away from your husband or wife
  • To move things away from each other

normal

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US / 'nɔ:ml /

UK / ˈnɔrməl /

A1
  • adjecitve
  • Standard or regular way of doing something
  • Having standard mental or physical ability, health

bodybuilder

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US / /

UK / /

C2
  • noun
  • Someone who exercises to increase their muscles

while

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US / waɪl /

UK / hwaɪl, waɪl /

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

actually

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US / ˈæktʃuəli /

UK / ˈæktʃuəli /

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

shock

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US / ʃɒk /

UK / ʃɑ:k /

A2
  • noun
  • The passage of an electricity through the body
  • Sudden bad feeling caused by something unexpected
  • verb
  • To affect someone with an electrical current
  • To cause great surprise, horror, or anger

lose

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US / lu:z /

UK / luz /

A1
  • verb
  • To be unable to keep in check or control something
  • To decrease in value or quantity (e.g. weight)
  • To stop having certain qualities or abilities
  • To stop having or being entitled to
  • To fail to win something that is being contested
  • To be unable to find something you once had
  • To be dependent on someone (used with 'not')

regulate

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US / ˈregjuleɪt /

UK / ˈrɛɡjəˌlet /

A2
  • verb
  • To control something with rules or laws
  • To set/adjust (a clock, etc.); restrict motion in

erector

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US / ɪ'rektə /

UK / ɪ'rektə /

A1
  • noun
  • Person or muscle that makes something stand up

too

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US / tu: /

UK / tu /

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

processes

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US / ˈprəʊsesɪz , prəˈsesɪz /

UK / ˈprɑːsesɪz , prəˈsesɪz /

B1
  • other
  • Sets 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

gross

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US / ɡrəʊs /

UK / ɡros /

B1
  • adjecitve
  • Nasty; ill-mannered; unappealing
  • noun
  • 144 of something; twelve dozen of something
  • Total sum of money earned before costs and taxes
  • Total weight of something including packaging
  • verb
  • To earn an amount of money before costs and taxes

thick

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US / θɪk /

UK / θɪk /

A2
  • adjecitve
  • Difficult to see through, as fog
  • Full of (people, etc.)
  • (Of a liquid) that moves or pours slowly
  • Stupid; not smart
  • (Of person's accent) hard to understand
  • Having a large distance between two surfaces

flow

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US / fləʊ /

UK / flo /

A2
  • noun
  • Amount of something that moves through an area
  • verb
  • To move steadily and easily in a certain direction

eat

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US / i:t /

UK / it /

A1
  • verb
  • To put food in your mouth

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

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

obviously

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US / ˈɒbviəsli /

UK / ˈɑːbviəsli /

A2
  • adverb
  • In a way that is obvious/easy to see or understand

contain

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US / kənˈteɪn /

UK / kənˈten /

A2
  • verb
  • To keep something from spreading
  • To hold something inside something else

carbon

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US / 'kɑ:bən /

UK / ˈkɑrbən /

B1
  • noun
  • Chemical element with an atomic number of 6

straight

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US / streɪt /

UK / stret /

A2
  • adjecitve
  • Not having curves, bends, or angles
  • Not gay; heterosexual
  • honest and direct
  • adverb
  • in a line; immediately; honestly and directly

medical

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US / ˈmedɪkl /

UK / ˈmɛdɪkəl /

A2
  • adjecitve
  • Of or relating to physical health or medicine
  • noun
  • A health check or test

mucus

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US / ˈmju:kəs /

UK / ˈmjukəs /

A1
  • noun
  • Thick liquid substance made in certain parts of the human body, such as the nose

afraid

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US / əˈfreɪd /

UK / əˈfred /

A1
  • adjecitve
  • Worried that something bad will happen; scared

armpit

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US / ˈɑ:mpɪt /

UK / ˈɑrmˌpɪt /

C1
  • noun
  • Hollow place under your arm at the shoulder

itchy

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US / ˈɪtʃi /

UK / ˈɪtʃi /

B1
  • adjecitve
  • Nervous and unable to relax
  • (Of skin, etc.) irritated so you want to scratch it

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

exhalation

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US / ˌɛkshəˈleɪʃən /

UK / ˌɛkshəˈleɪʃən /

C2
  • noun
  • Act of expelling air from the lungs

syncope

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US / ˈsɪŋkəpi /

UK / ˈsɪŋkəpi /

A1
  • noun
  • Spontaneous loss of consciousness caused by insufficient blood to the brain (phonology) the loss of

scare

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US / skeə(r) /

UK / sker /

A1
  • noun
  • Act of making some feel frightened
  • Something causing people to be afraid
  • verb
  • To become frightened
  • To make someone feel frightened or worried

explain

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US / ɪk'spleɪn /

UK / ɪkˈsplen /

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

sweat

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US / swet /

UK / swɛt /

A2
  • noun
  • An amount of hard work
  • (Of work, job) hard; needing effort
  • Liquid from your skin when you are hot or nervous
  • verb
  • To do an amount of hard work
  • To be worried or anxious about something
  • To produce drops of water from your skin when hot

heat

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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

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

listen

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US / ˈlɪsn /

UK / ˈlɪsən /

A1
  • verb
  • To carefully consider what someone is saying

duh

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US / du: /

UK / dʌ /

A1
  • exclamation
  • Sound make when people think something is stupid

attack

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US / ə'tæk /

UK / əˈtæk /

A2
  • noun
  • Act intended to hurt someone physically, mentally
  • verb
  • To try to destroy, beat, or injure

contract

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US / 'kɒntrækt /

UK / 'kɑ:ntrækt /

A1
  • noun
  • Legal agreement, e.g. for doing work for money
  • Agreement to pay someone to kill a person
  • verb
  • To become ill as a result of getting a disease
  • To make an agreement for doing work for money
  • To reduce in size, length due to heat loss
  • To reduce the amount of

swollen

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US / ˈswəʊlən /

UK / ˈswolən /

B1
  • adjecitve
  • Increased in size due to injury
  • verb
  • To increase in size or number larger than normal
  • To become larger than normal, often due to injury

either

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US / ˈaɪðə(r) /

UK / ˈiðɚ, ˈaɪðɚ /

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

dust

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US / dʌst /

UK / dʌst /

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

shallow

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US / 'ʃæləʊ /

UK / ˈʃælo /

B1
  • adjecitve
  • Not deep; short from top to bottom
  • Lacking interest in serious things; superficial

fresh

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US / freʃ /

UK / frɛʃ /

A1
  • adjecitve
  • Clean; not used or dirty
  • Remaining clear, as in a person's memory
  • Newly made or gathered
  • (Water) not salty, usually from a lake or a river

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

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

circulation

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US / ˌsɜ:kjəˈleɪʃn /

UK / ˌsɚkjəˈleʃən /

B1
  • noun
  • Movement of blood through the body
  • Repeatedly passing items from one person to others

low

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US / ləʊ /

UK / lo /

A1
  • adjecitve
  • Having a small quantity, supply, or amount
  • Being unhappy or unpleasant in attitude
  • Not high; being near the ground, or bottom
  • (Of a voice, sound) being soft; quiet
  • noun
  • Situation of not having a lot of something

sunlight

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US / ˈsʌnlaɪt /

UK / ˈsʌnˌlaɪt /

A2
  • noun
  • Rays of light coming from the sun

dude

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US / du:d /

UK / dud, djud /

B2

bloodstream

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US / ˈblʌdstri:m /

UK / ˈblʌdˌstrim /

C2
  • noun
  • Blood flowing through the circulatory system

next

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US / nekst /

UK / nɛkst /

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

quickly

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US / ˈkwɪkli /

UK / ˈkwɪklɪ /

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

bite

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US / baɪt /

UK / baɪt /

A2
  • noun
  • Amount of food taken into your mouth at one time
  • Wound left from being bitten
  • verb
  • (E.g. of fish) to take bait and be caught
  • To close your teeth onto something, usually to eat

tract

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US / trækt /

UK / trækt /

B2
  • noun
  • A large stretch of land
  • System of internal body parts, e.g. the intestines
  • Piece of writing that communicates a certain view

attacker

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US / əˈtækə(r) /

UK / əˈtækər /

A1
  • noun
  • Someone who attacks

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

leads

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US / 'ledz /

UK / 'ledz /

A1
  • other
  • Wires for electricity, computer, etc.; cable
  • Information that could help to solve crimes
  • Ropes used to tie some things to stop it escaping
  • verb
  • To show the way or guide others
  • To be at the front of a race or game

apocrine

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US / ˈæpəkrɪn; ˈæpəkraɪn /

UK / ˈæpəkrɪn /

A1
  • other
  • (Of exocrine glands) Producing a secretion in which part of the secreting cell is released with the

month

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US / mʌnθ /

UK / mʌnθ /

A1
  • noun
  • One of 12 28-31 day periods in the year

bile

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US / baɪl /

UK / baɪl /

B2
  • noun
  • Body fluid that helps you digest fat

know

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US / nəʊ /

UK / noʊ /

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

sun

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US / sʌn /

UK / sʌn /

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

muscle

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US / 'mʌsl /

UK / ˈmʌsəl /

A2
  • noun
  • Physical power
  • Body tissue that moves parts of the body
  • verb
  • To use or muscles of force to get what you want

digestion

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US / daɪˈdʒestʃən /

UK / daɪˈdʒɛstʃən, dɪ- /

B2
  • noun
  • Process of changing eaten food for use in the body

air

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US / eə(r) /

UK / er /

A1
  • noun
  • Mixture of gases around the earth that we breathe
  • A person's manner intended to impress others
  • verb
  • To expose to the outside, to dry or freshen
  • To broadcast a TV or radio show
  • To open a subject to discussion and debate

conscious

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US / ˈkɒnʃəs /

UK / ˈkɑnʃəs /

A2
  • adjecitve
  • Aware of what is going on around you

clear

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US / klɪə(r) /

UK / klɪr /

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

rapidly

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US / 'ræpɪdlɪ /

UK / ˈræpɪdlɪ /

B1
  • adverb
  • With great speed; quickly

last

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US / lɑ:st /

UK / læst /

A1
  • adjecitve
  • Most recent; the latest
  • The one before
  • adverb
  • Final; with nothing following; after all others
  • Most recent; the latest
  • determiner
  • The one at the end
  • verb
  • To remain or continue for a certain period of time

shortness

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US / ʃɔ:tnəs /

UK / ʃɔ:tnəs /

B1
  • noun
  • Condition or state of being short

proboscis

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US / prəˈbɒsɪs /

UK / prəˈbɑ:sɪs /

A1
  • noun
  • Long flexible snout as of an elephant

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.

serve

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US / sɜ:v /

UK / sɚv /

A2
  • verb
  • To act in a particular position or office
  • To hit the first ball to an opponent in tennis etc.
  • To be used for a particular purpose
  • To give someone food or drinks
  • To give a person or group a service that is needed
  • To spend a particular amount of time in prison
  • To help customers find products and making sales
  • To give an official paper to appear in court

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

hunger

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US / ˈhʌŋgə(r) /

UK / ˈhʌŋɡɚ /

B2
  • noun
  • Strong desire or need
  • Need for food; a severe lack of food

scared

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US / skeəd /

UK / skerd /

A1
  • adjecitve
  • Frightened, afraid
  • verb
  • To become frightened
  • To make someone feel frightened or worried

hence

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US / hens /

UK / hɛns /

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

waste

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US / weɪst /

UK / west /

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

pili

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US / pɪ'li: /

UK / pɪ'lɪ /

A1
  • noun
  • The edible seed of a Phillipine tree, which tastes like a sweet almond.

contraction

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US / kənˈtrækʃn /

UK / kənˈtrækʃən /

B2
  • noun
  • Process of becoming smaller in length/size
  • Involuntary, often painful tightening of a muscle
  • Shortened form of words by omitting letters

emotion

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US / iˈməuʃən /

UK / ɪˈmoʃən /

A2
  • noun
  • A feeling such as sadness, anger or love

fahrenheit

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US / ˈfærənhaɪt /

UK / ˈfærənˌhaɪt /

B1
  • noun
  • Measurement of temperature

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

focus

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US / 'fəʊkəs /

UK / ˈfokəs /

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

activate

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US / ˈæktɪveɪt /

UK / ˈæktəˌvet /

B1
  • verb
  • To cause to happen; cause a chemical reaction
  • To make something start working

break

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US / breɪk /

UK / brek /

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

bear

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US / bɛː /

UK / bɛr /

A2
  • noun
  • Large brown animal with fur that lives in forests
  • Someone who expects stock market to fall
  • verb
  • To accept (responsibilities or duties)
  • To give birth to a child; to produce fruit
  • To accept or suffer the weight of difficulties
  • To keep moving left or right while going forward
  • To show (sign of something)
  • To support the weight of something, e.g. a bridge

concentrate

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US / 'kɒnsntreɪt /

UK / ˈkɑnsənˌtret /

A2
  • verb
  • To cause to be present in large amount or number
  • To pay great attention to a task; focus
  • To remove water from a thing to make it more pure

scientist

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US / ˈsaɪəntɪst /

UK / ˈsaɪəntɪst /

A2
  • noun
  • Person who is trained in a science

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

problem

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US / ˈprɒbləm /

UK / ˈprɑbləm /

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

wear

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US / weə(r) /

UK / wer /

A1
  • noun
  • Clothing designed for a purpose e.g. skiing
  • Damage from continual use over a long period
  • verb
  • To have clothes, glasses, shoes etc. on your body
  • To display an expression or emotion on the face
  • To become weaker or damaged from continued use

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

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

big

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US / bɪɡ /

UK / bɪɡ /

A1
  • adjecitve
  • Popular
  • Serious
  • Large

into

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US / 'ɪntə /

UK / ˈɪntu /

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

core

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US / kɔ:(r) /

UK / kɔr, kor /

A2
  • noun
  • Important central part of something
  • verb
  • To take out the central section of a fruit

surface

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US / 'sɜ:fɪs /

UK / ˈsɚfəs /

A2
  • adjecitve
  • Of the top layer; not deep or meaningful
  • noun
  • Top layer of the ground or of water
  • Nature or emotions that show, but may not be true
  • Outside or upper layer of something
  • verb
  • To give (road) a top layer
  • To appear after being hidden, unseen, or unknown
  • To come to the top of something; emerge
  • To come to the top level of water, mud, etc.

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

alright

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US / ɔ:lˈraɪt /

UK / ɔlˈraɪt /

A2
  • adjecitve
  • OK; fine; good

order

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US / 'ɔ:də(r) /

UK / ˈɔrdɚ /

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

immune

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US / ɪˈmju:n /

UK / ɪˈmjoon /

B1
  • adjecitve
  • Having a special protection from, e.g. the law

odour

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US / ˈəʊdə(r) /

UK / ˈodɚ /

B1
  • noun
  • A certain smell, often strong or distinct

also

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US / 'ɔ:lsəʊ /

UK / ˈɔlso /

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

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

than

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US / ðən /

UK / ðən /

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

rate

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US / reɪt /

UK / ret /

A1
  • noun
  • Current price or cost of something
  • Speed or frequency of events over time
  • verb
  • To assess something or consider its qualities

stand

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US / stænd /

UK / stænd /

A1
  • noun
  • Effort to fight against something
  • Piece of furniture; device to hold or support
  • Place in a stadium where spectators watch
  • Table where things are sold at a fair or market
  • verb
  • To be a candidate in an election
  • To be able to accept someone, something; bear
  • To last for a long time
  • To be upright; not be sitting or lying down
  • To place something in a particular position; place
  • To be (as stated)
  • To still be valid
  • To have an opinion about something

hungry

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US / ˈhʌŋgri /

UK / ˈhʌŋɡri /

B2
  • adjecitve
  • Feeling a need or want to eat food
  • Being eager to get or do something

filter

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US / 'fɪltə(r) /

UK / ˈfɪltɚ /

B1
  • noun
  • Device to remove certain types of light, sound
  • Device to remove unwanted things from liquid, gas
  • verb
  • To remove certain types of light, sound
  • To remove unwanted substances from a liquid or gas

heal

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US / hi:l /

UK / hi:l /

B1
  • verb
  • To recover from or forget a bad experience
  • To make or become healthy or well again

dilate

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US / daɪˈleɪt /

UK / daɪˈlet,ˈdaɪˌlet /

C1
  • verb
  • (Of the iris of the eye, etc.) to get bigger

easily

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US / ˈi:zəli /

UK / ˈizəli /

A1
  • adverb
  • Clearly; without doubt; certainly
  • Without difficulty

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

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

adrenal

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US / æd'ri:nəl /

UK / æd'ri:nəl /

C2
  • noun
  • Located at the top of the kidneys

temporarily

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US / tempəˈrerɪlɪ /

UK / tempəˈrerɪlɪ /

A2
  • adverb
  • For a limited amount of time

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)

consist

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US / kən'sɪst /

UK / kənˈsɪst /

A2
  • verb
  • To have as an essential, necessary or main part

clot

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US / klɒt /

UK / klɑ:t /

B2
  • noun
  • Mass of blood, etc. that has dried up/become thick
  • verb
  • To make a liquid such as blood turn thick or solid

person

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US / 'pɜ:sn /

UK / 'pɜ:rsn /

A1
  • noun
  • Man, woman or child

three

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US / θri: /

UK / θri /

A1
  • number
  • Number 3

apoptosis

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US / ˌæpə'təʊsɪs /

UK / ˌæpə'toʊsɪs /

A1
  • noun
  • Type of cell death in which the cell uses specialized cellular machinery to kill itself; a cell suic

physique

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US / fɪˈzi:k /

UK / fɪˈzik /

C1
  • noun
  • The shape and size of a human body

stress

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US / stres /

UK / strɛs /

A2
  • noun
  • Emphasis on part of a word or sentence
  • Pressure on something or someone
  • A state of mental tension, worry due to problems
  • verb
  • To emphasize one or more parts of a word, sentence
  • To put pressure on something or someone
  • To say your opinion strongly
  • To be in a state of mental tension due to problems

program

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US / 'prəʊɡræm /

UK / ˈproˌɡræm, -ɡrəm /

A1
  • noun
  • Small book of events in a play, concert or movie
  • A plan or schedule of events
  • Series of classes at a college or university
  • A computer application
  • TV show
  • verb
  • To make someone act or think in a certain way
  • To write computer code for a piece of software

chemical

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US / ˈkemɪkl /

UK / ˈkɛmɪkəl /

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

depression

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US / dɪ'preʃn /

UK / dɪˈprɛʃən /

B2
  • noun
  • Medical condition of a lack of vitality
  • Period of unemployment and low economic activity

level

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US / 'levl /

UK / ˈlɛvəl /

A2
  • adjecitve
  • (Sports) equal to another
  • Being steady and determined (e.g. a voice)
  • noun
  • Specific height of something
  • Amount of ability you have compared to others
  • Floor or deck within a building
  • Tool used to determine if something is lying flat
  • verb
  • To aim a gun at someone
  • To destroy a building; flatten an area completely
  • To make things flat or even
  • To make a score equal to another, in sports

trap

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US / træp /

UK / træp /

A2
  • noun
  • Device used for catching animals
  • Vehicle pulled by a single horse
  • Area or hazard on a golf course
  • Someone's mouth
  • Uncomfortable event that is hard to escape
  • verb
  • To use a device to catch animals or people
  • To hold, e.g. a nerve, so that it cannot move
  • To catch or prevent someone from escaping
  • To trick someone
  • To put into a situation you can't escape from

cool

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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

hypothalamus

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US / ˌhaɪpəˈθæləməs /

UK / ˌhaɪpoˈθæləməs /

C1
  • noun
  • Basal part of the diencephalon governing autonomic nervous system

strong

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US / strɒŋ /

UK / strɔŋ /

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

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)

intestine

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US / ɪnˈtestɪn /

UK / ɪnˈtɛstɪn /

B1
  • noun
  • Long tube in the body for digesting food

send

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US / send /

UK / sɛnd /

A1
  • verb
  • To cause to behave or respond in a particular way
  • To cause mail or packages to go to another place
  • To move something quickly in a particular way
  • To give information or greetings to someone

highly

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US / ˈhaɪli /

UK / 'haɪlɪ /

A1
  • adverb
  • In a manner that shows approval
  • More than usual; to a great degree

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

rich

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US / rɪtʃ /

UK / rɪtʃ /

A1
  • adjecitve
  • Having a lot of money or valuable possessions
  • Containing a lot of exciting events or experiences and therefore very interesting
  • (of a color, sound, smell, etc.) Pleasantly deep or strong
  • If food is rich, it contains a large amount of oil, butter, eggs, or cream.

start

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US / stɑ:t /

UK / stɑrt /

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

animal

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US / ˈænɪml /

UK / ˈænəməl /

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

inhale

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US / ɪnˈheɪl /

UK / ɪnˈhel /

B2
  • verb
  • To breathe in something like air or smoke
  • To eat or drink something extremely fast

water

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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

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

canal

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US / kəˈnæl /

UK / kəˈnæl /

B1
  • noun
  • Channel cut through land for boats or ships

purpose

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US / 'pɜ:pəs /

UK / ˈpɚpəs /

A2
  • noun
  • Reason for which something is done; aim; goal

relax

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US / rɪˈlæks /

UK / rɪˈlæks /

A1
  • verb
  • To calm or quiet yourself, or stop worrying
  • To release the tightness in muscles
  • To make a rule or law less strict

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)

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

ultraviolet

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US / ˌʌltrə'vaɪələt /

UK / ˌʌltrəˈvaɪəlɪt /

B2
  • adjecitve
  • Concerning light waves that are extremely short

sound

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US / saʊnd /

UK / saʊnd /

A1
  • adjecitve
  • Sensible, dependable and reliable
  • Unbroken or undisturbed, as of sleep
  • Firm or solid in structure
  • Sane; not mentally ill
  • Clearly reasoned; involving sense, good judgment
  • noun
  • Unique quality that characterizes a style of music
  • Waves traveling in air or water that can be heard
  • verb
  • To seem or appear to be, from what was said
  • To say in a clear deliberate manner
  • To make a noise, e.g. to ring a bell

warm

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US / wɔ:m /

UK / wɔrm /

A1
  • adjecitve
  • Friendly, sincere and kind to others
  • Being friendly or sincere
  • Slightly hot; not very hot
  • verb
  • To become more friendly or to like something
  • To make something hotter

for

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US / fə(r) /

UK / fɔr,fə /

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

nutrient

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US / ˈnju:triənt /

UK / ˈnutriənt /

B1
  • noun
  • A chemical living things needs to be healthy

clothe

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US / kləʊð /

UK / kloʊð /

B1
  • verb
  • To put a certain type of clothing on someone; dress

much

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US / mʌtʃ /

UK / mʌtʃ /

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

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

gland

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US / ɡlænd /

UK / ɡlænd /

B2
  • noun
  • Organ that produces substances for the body to use

labrum

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US / 'leɪbrəm /

UK / 'leɪbrəm /

A1
  • noun

cold

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US / kəʊld /

UK / kold /

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

unpleasant

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US / ʌnˈpleznt /

UK / ʌnˈplɛzənt /

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

kill

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US / kɪl /

UK / kɪl /

A1
  • noun
  • Animal killed by a person or other animal
  • verb
  • To cause someone to experience a lot of pain
  • To end the life of a person or other living thing
  • To be very funny
  • To prevent something from continuing or operating
  • To do something unimportant to pass time quickly

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

pierce

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US / pɪəs /

UK / pɪrs /

B2
  • noun
  • Person's name
  • verb
  • To force a way into
  • To make a hole with something sharp

adrenaline

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US / ə'drenəlɪn /

UK / əˈdrɛnəlɪn /

C1
  • noun
  • Chemical in the body that responds to stress, fear

generate

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US / ˈdʒenəreɪt /

UK / ˈdʒɛnəˌret /

A2
  • verb
  • To create or be produced or bring into existence
  • To create electricity, heat, energy and power

just

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US / dʒʌst /

UK / dʒʌst /

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

heart

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US / hɑ:t /

UK / hɑrt /

A1
  • noun
  • A feeling of care for others; compassion
  • Courage, confidence, and emotional strength
  • Be cheerfully encouraging
  • Most essential, important, or central part
  • Referring to a promise or something important
  • State or feelings of affection or deep love
  • Core part of a vegetable, e.g. a lettuce
  • The part of the body that pumps blood
  • Place where emotions are believed to be felt
  • A shape that represents love

movement

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US / ˈmu:vmənt /

UK / ˈmuvmənt /

A2
  • noun
  • Part of a piece of classical music
  • Group with a shared interest or goal
  • Group sharing the same idea to change society, art
  • Action you do when exercising, e.g. in a gym
  • Part of a piece of music

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

hold

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US / həʊld /

UK / hold /

A1
  • noun
  • Section of a ship or plane used for storing things
  • Influence or power held over someone
  • Place of support for hands or feet when climbing
  • verb
  • To agree to keep something for someone
  • To have the capacity to support/contain something
  • To control an area and protect it from attack
  • To not allow someone to leave a place
  • To cause an event to happen at a place or time
  • To use hands or arms to carry or keep something
  • To have a specific quality or property
  • To keep an image, belief or feeling in your mind
  • To have or own something
  • To wait before being able to talk on the phone
  • To limit the movement of someone in a sport

dioxide

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US / daɪˈɒksaɪd /

UK / daɪˈɑksaɪd /

B2
  • noun
  • An oxide containing two oxides per molecule

very

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US / 'verɪ /

UK / ˈvɛri /

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

they

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US / ðeɪ /

UK / ðe /

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

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

death

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US / deθ /

UK / dɛθ /

A2
  • noun
  • When someone dies; the end of life

risk

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US / rɪsk /

UK / rɪsk /

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

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

bronchial

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US / ˈbrɒŋkiəl /

UK / ˈbrɑ:ŋkiəl /

C1
  • adjecitve
  • Of the bronchi (tubes leading to the lungs)

fat

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US / fæt /

UK / fæt /

A1
  • adjecitve
  • Having too much weight for the body size
  • Bringing or having a large amount of money
  • noun
  • Amount beyond what is usual or necessary
  • Oily part of meat

irritant

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US / ˈɪrɪtənt /

UK / ˈɪrɪtənt /

C1
  • noun
  • Something causing soreness; annoying thing

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

rapid

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US / ˈræpɪd /

UK / ˈræpɪd /

B1
  • adjecitve
  • Moving or happening very quickly
  • noun
  • Rough and fast-moving part of a river

whereas

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US / ˌweərˈæz /

UK / hwɛrˈæz, wɛr- /

A2
  • conjunction
  • Taking into consideration the fact that

ancestor

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US / 'ænsestə(r) /

UK / ˈænˌsɛstɚ /

B1
  • noun
  • A person from your family that lived in the past

histamine

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US / ˈhɪstəmi:n /

UK / ˈhɪstəˌmin, -mɪn /

C1
  • noun
  • Natural chemical released during allergic reaction

relaxation

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US / ˌri:lækˈseɪʃn /

UK / ˌrilækˈseʃən /

A2
  • noun
  • Activities that allow someone to rest, become calm
  • Act of easing something, such as muscle tightness
  • Act of making a rule or law, less strict

possible

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US / ˈpɒsəbl /

UK / ˈpɑsəbəl /

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

human

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US / 'hju:mən /

UK / ˈhjumən /

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

sufficient

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US / səˈfɪʃnt /

UK / səˈfɪʃənt /

A2
  • adjecitve
  • Having or providing enough when needed

pressure

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US / 'preʃə(r) /

UK / ˈprɛʃɚ /

A2
  • noun
  • Anxiety caused by difficult problems
  • Force, weight when pressing against a thing
  • Strong persuasion to do something
  • verb
  • To apply force to something
  • To persuade or force someone to do something

drop

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US / drɒp /

UK / drɑp /

A1
  • noun
  • Distance between a higher and a lower level
  • Act of letting something fall (from your hand)
  • A decrease in quantity or quality; reduction
  • Tiny amount of liquid, with rounded bottom
  • verb
  • To drive someone to a place and then drive away
  • To let something fall from your hand
  • To fall or lie down quickly, as when shot
  • To decide to stop something e.g. a course)
  • To (cause to) reduce in quantity or quality

goosebump

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US / g /

UK / g /

C2
  • noun
  • Small bumps on your skin when you are e.g. afraid

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

their

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US / ðɛː /

UK / ðer /

A1
  • determiner
  • Belonging to them

burst

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US / bɜ:st /

UK / bɚst /

A2
  • noun
  • Brief time period when something happens and ends
  • verb
  • To move (arrive, exit, etc.) suddenly or hurriedly
  • To break apart/open in a sudden and violent way

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”

who

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US / hu: /

UK / hu /

A1
  • pronoun
  • Which person
  • Used to introduce information about people

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

red

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US / red /

UK / rɛd /

A1
  • adjecitve
  • Being the color of blood

damage

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US / ˈdæmɪdʒ /

UK / ˈdæmɪdʒ /

A2
  • noun
  • Physical harm that is done to something
  • verb
  • To harm physically; to hurt or break something

celsius

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US / ˈselsiəs /

UK / ˈselsiəs /

B1
  • noun
  • Another name for 'centigrade'

common

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US / 'kɒmən /

UK / ˈkɑmən /

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

topic

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US / 'tɒpɪk /

UK / ˈtɑpɪk /

A2
  • noun
  • Subject or issue people talk or write about

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

then

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US / ðen /

UK / ðɛn /

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

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

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

jealous

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US / ˈdʒeləs /

UK / ˈdʒɛləs /

A2
  • adjecitve
  • Wishing you were like someone or had their things

balloon

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US / bəˈlu:n /

UK / bəˈlun /

B1
  • noun
  • Thin bag of rubber filled with air, used as a toy
  • Large air-filled bag to carry people into the air
  • verb
  • To grow larger quickly; spring up suddenly
  • To travel in a large balloon

chest

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US / tʃest /

UK / tʃɛst /

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

bacteria

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US / bæk'tɪərɪə /

UK / bækˈtɪriə /

B2
  • noun
  • The very small creatures that can cause disease

anticoagulant

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US / ˌæntikəʊˈæɡjələnt /

UK / ˌæntikoʊˈæɡjələnt /

A1
  • noun
  • Medicine that prevents or retards the clotting of blood

hard

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US / hɑ:d /

UK / hɑː(r)d /

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

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

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’

eventually

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US / ɪˈventʃuəli /

UK / ɪˈvɛntʃuəli /

A2
  • adverb
  • After a long time; after many attempts; in the end

get

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US / ɡet /

UK / ɡɛt /

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

oxygen

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US / 'ɒksɪdʒən /

UK / ˈɑksɪdʒən /

B1
  • noun
  • A gas in the air that we need to breathe

cell

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US / sel /

UK / sɛl /

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

what

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US / wɒt /

UK / hwɑt, hwʌt, wɔt, wʌt,hwət, wət /

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

present

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US / 'preznt /

UK / ˈprɛznt /

A1
  • adjecitve
  • Being in attendance; being there; having turned up
  • noun
  • Gift
  • Verb tense indicating an action is happening now
  • Current time; now
  • verb
  • To introduce someone to others
  • To host a program on television or radio
  • To give a speech or presentation
  • To show something to someone who will examine it
  • To appear or happen
  • To give an award or prize to someone

aware

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US / əˈwɛə /

UK / əˈwɛr /

A2
  • adjecitve
  • Knowing or feeling that something exists

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

about

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US / ə'baʊt /

UK / əˈbaʊt /

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

dna

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US / ˌdiː en ˈeɪ /

UK / ˌdiː en ˈeɪ /

B2
  • noun
  • Chemical in living cells with genetic information

during

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US / ˈdjʊərɪŋ /

UK / ˈdʊrɪŋ, ˈdjʊr- /

A1
  • preposition
  • At some point in the course of an event or thing

uva

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US / ˌjuː viː ˈeɪ /

UK / ˌjuː viː ˈeɪ /

A1
  • abbreviation
  • UVA is an acronym

down

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US / daʊn /

UK / daʊn /

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

find

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US / faɪnd /

UK / faɪnd /

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

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

itch

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US / ɪtʃ /

UK / ɪtʃ /

B1
  • noun
  • Something you are desperate to do
  • Feeling on the skin that makes you want to scratch
  • verb
  • To have a skin irritation you want to scratch

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

instantly

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US / ˈɪnstəntli /

UK / ˈɪnstəntli /

A2
  • adverb
  • In a manner without delay; immediately

tissue

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US / ˈtɪʃu: /

UK / ˈtɪʃu /

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

emerge

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US / ɪ'mɜ:dʒ /

UK / ɪˈmɚdʒ /

A2
  • verb
  • To rise or appear out of some background

even

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US / 'i:vn /

UK / ˈivən /

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

suck

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US / sʌk /

UK / sʌk /

B1
  • noun
  • Drawing of liquid into a tube or hole
  • phrasal verb
  • To trick or deceive someone into doing something
  • verb
  • To be very bad, undesirable or unpleasant
  • To be very bad, undesirable, or unpleasant
  • To pull or remove something with great power
  • To attract someone; make someone interested
  • To draw into your mouth through a small hole

vagus

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US / 'veɪgəs /

UK / 'veɪgəs /

A1
  • other
  • Mixed nerve that supplies the pharynx and larynx and lungs and heart and esophagus and stomach and m

straw

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US / strɔ: /

UK / strɔ /

B1
  • adjecitve
  • Dry yellow stems of crops such as wheat
  • noun
  • Thin tube used for sucking up liquids to drink

excrete

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US / ɪk'skri:t /

UK / ɪkˈskrit /

C1
  • verb
  • To get rid of bodily waste, e.g. feces

yeah

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US / jeə /

UK / ˈjɛə, ˈjæə, jɛ- /

A1
  • exclamation
  • Another way of saying 'yes'

saliva

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US / səˈlaɪvə /

UK / səˈlaɪvə /

B2
  • noun
  • Liquid produced by glands in the mouth

type

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US / taɪp /

UK / taɪp /

A1
  • noun
  • Printed letters or blocks used for printing them
  • Group of things or people sharing common features
  • verb
  • To identify something belonging to a group
  • To write by touching keys on a keyboard
  • Subtitles section
  • It's AumSum Time.
  • What does our Liver do?
  • No Idea.
  • But AumSum does a lot of things.
  • Oh AumSum.
  • All the blood leaving our stomach and intestine passes through the liver.
  • Liver processes the blood by breaking down the nutrients and chemicals the blood carries.
  • It then converts the nutrients into forms which are easier for the rest of our body to use.
  • Liver also regulates the levels of most of the chemicals in our body.
  • The liver also filters out the waste products which our blood carries.
  • Nutrients are sent back into the bloodstream.
  • While waste is excreted as a product called bile.
  • This bile is very helpful in breaking down the fats in our body.
  • Thus preparing them for further digestion and absorption.
  • Apart from this, the liver performs more than 300 separate functions.
  • Even the scientists are not completely aware of all of them.
  • Our body temperature is about 37 degrees Celsius or 98.6 degrees Fahrenheit.
  • A part of our brain called hypothalamus controls and maintains the core body temperature.
  • Will it also maintain my physique?
  • Oh. Please listen.
  • Usually during cold months, the temperature is quite low.
  • Hence, if we have not worn any warm clothes, we feel cold.
  • Our body temperature starts to decrease.
  • This decrease in temperature is instantly detected by our hypothalamus.
  • Thus, it sends signals to our muscles to contract and relax rapidly, making us shiver.
  • This rapid contraction and relaxation of our muscles generates heat.
  • This heat warms our body, thus helping us maintain our core body temperature.
  • Topic.
  • Human hair.
  • Why do we get goosebumps?
  • To burst balloons.
  • No.
  • Goosebumps served a purpose for our ancestors who had a lot of hair on their body.
  • When our ancestors felt cold, their adrenal glands produced adrenaline.
  • Adrenaline caused the erector pili muscles which are attached to the hair follicles to contract.
  • Creating shallow depressions on the skin surface and making the hair stand straight up.
  • Thus causing goosebumps.
  • The straightened hair trapped more air, which prevented their body heat from escaping and hence, kept them warm.
  • Also, when our ancestors felt afraid of any animal, the adrenaline made their hair stand up.
  • Making them look bigger and thus, scared their attacker.
  • Yeah dude.
  • It scares me too.
  • Now, as this characteristic of goosebumps is inherited by us.
  • We also get them during strong emotions or when it is cold.
  • What causes body odor?
  • Duh.
  • Obviously sweat.
  • No. Sweat is odorless.
  • What?
  • But how is that possible?
  • Our skin contains two types of sweat glands.
  • Ecrin glands and apocrine glands.
  • Ecrin glands are present all over our body.
  • They produce sweat which is mostly water.
  • Whereas apocrine glands are concentrated in regions such as ear canals, armpits, etc.
  • They produce thicker sweat which has proteins.
  • Can I eat these proteins and become a bodybuilder?
  • Oh gross.
  • Just listen.
  • We know that millions of bacteria are normally found all over our skin.
  • When apocrine glands produce sweat.
  • The bacteria on our skin break down the proteins in that sweat.
  • Releasing unpleasant smell which we call as body odor.
  • Why
  • Do we get sunburn?
  • Because sun is jealous of my skin.
  • No.
  • Sunburn is a term for red and inflamed skin.
  • It is caused by ultraviolet radiation present in sunlight.
  • Sunlight consists of three types of ultraviolet radiation.
  • UVA, UVB and UVC.
  • Does it contain UVC as well?
  • Oh. Just listen.
  • Our skin is made up of cells.
  • These cells have DNA.
  • When we are in the hot sun for very long.
  • The UVB radiation enters into our skin cells and starts to damage the DNA.
  • DNA damage can lead to cancer.
  • Thus, to reduce the risk of cancer, the damaged skin cells kill themselves.
  • This programmed cell death is called apoptosis.
  • Apoptosis activates the immune response.
  • As a result, the blood flow increases to that area to heal the skin.
  • This leads to red and inflamed skin which we call as sunburn.
  • Why do we get sunburn?
  • Why do mosquito bites itch?
  • Because mosquitoes don't brush before biting.
  • No. A mosquito doesn't actually bite.
  • What?
  • It doesn't bite?
  • No. A mosquito sucks our blood through a straw like structure called proboscis.
  • A proboscis is made up of 6 parts.
  • Out of the 6 parts, 4 parts are used to pierce into our skin and blood vessels and hold the tissues apart.
  • Through the 5th part called hypopharynx, the mosquito drops its saliva containing an anticoagulant.
  • Anticoagulant prevents the blood from clotting.
  • So that the 6th part of proboscis called labrum can easily suck up the blood.
  • Now, our immune system recognizes the anticoagulant as an invader.
  • Hence, it releases histamine.
  • Histamine dilates the blood vessels.
  • So that blood along with immune cells can come to attack the invaders and heal the affected area.
  • This histamine causes the itchy feeling.
  • Why do we faint?
  • I don't know.
  • Alright.
  • I'll explain.
  • Our brain keeps us conscious and focused.
  • However, to do so, our brain continuously requires oxygen which is applied to it through blood.
  • But sometimes when blood flow is reduced to the brain, it does not get sufficient oxygen.
  • As a result, we temporarily lose consciousness and faint.
  • The medical term for fainting is syncope.
  • Cool name.
  • Now, the most common causes due to which we faint are shock and stress.
  • In these cases, our heart rate rises and the blood pressure increases.
  • However, eventually, our vagus nerve which emerges from the brain stabilizes us.
  • It signals the heart to slow down and decreases the blood pressure.
  • But sometimes, it malfunctions and drops the heart rate and blood pressure too much.
  • Reducing blood circulation to the brain.
  • Due to lack of oxygen in the brain, we faint.
  • This is called vasovagal syncope.
  • Why does our stomach growl?
  • Because there are bears in our stomach.
  • No.
  • Growling sound is produced mostly due to movement of gas in the digestive tract.
  • Especially in the intestines.
  • Now gas can either enter or be produced in the intestines.
  • But how?
  • When we eat food very quickly, sometimes we swallow gas such as air along with food.
  • Besides this, bacteria in our intestines also produce gases.
  • Now during digestion, the muscles of our intestines contract in order to push food ahead.
  • However, gases also get pushed along with food.
  • Now, as our intestines are hollow tubes, such movement of gases produces growling sounds.
  • Besides this, hunger increases growling.
  • This is because when we are hungry, our digestive system starts preparing for the next meal.
  • Hence, it clears the remains of last meal, causing more muscle contraction.
  • Thus producing more growling sounds.
  • As a result, the bronchial tubes get narrower than normal, thus making it hard to breathe.
  • Besides this, the bronchial tubes are highly sensitive to irritants.
  • Like pollen, tobacco smoke, dust, etc.
  • When an asthmatic person inhales an irritant.
  • The tubes become much more swollen and more mucus is produced.
  • This causes further narrowing of the tubes.
  • This narrowing makes exhalation harder than inhalation.
  • Hence, carbon dioxide rich air gets trapped in the person's body.
  • And he does not get sufficient supply of fresh oxygen.
  • As a result, the person can have severe shortness of breath and a feeling of tightness in the chest.
  • When an asthmatic person experiences such problems, he is said to have an asthma attack.