Subtitles section
Repeat sentence
Subtitles mode
Full screen
Previous
Next
x 1.0
Playback speed
More

Neil deGrasse Tyson Explains Dimensions

Video vocabulary

north

Copy vocabulary

US / nɔ:θ /

UK / nɔ:rθ /

A1
  • adjecitve
  • Coming from the opposite direction to the south
  • noun
  • Direction to your left when facing the rising sun

pick

Copy vocabulary

US / pɪk /

UK / pɪk /

A1
  • noun
  • Sharp tool used for breaking the ground
  • Item selected from a group of choices
  • verb
  • To take fruit or vegetables from a plant or tree
  • To decide on a thing from various choices; select
  • To remove (flower, etc.) with your fingers

really

Copy vocabulary

US / ˈri:əli /

UK / ˈriəˌli, ˈrili /

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

would

Copy vocabulary

US / wʊd /

UK / wʊd /

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

appendix

Copy vocabulary

US / ə'pendɪks /

UK / əˈpɛndɪks /

B1
  • noun
  • Additional information at the end of a document
  • Part of the body attached to the stomach

conjoin

Copy vocabulary

US / kənˈdʒɔɪn /

UK / kənˈdʒɔɪn /

A1
  • noun
  • Make contact or come together

maybe

Copy vocabulary

US / ˈmeɪbi /

UK / ˈmebi /

A1
  • adverb
  • Possibly but not certainly; perhaps

not

Copy vocabulary

US / nɒt /

UK / nɑt /

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

our

Copy vocabulary

US / 'aʊə(r) /

UK / aʊr /

A1
  • determiner
  • Belonging to us

intersection

Copy vocabulary

US / ˌɪntə'sekʃn /

UK / ˌɪntɚˈsɛkʃən /

B2
  • noun
  • Place where two things cross

hmm

Copy vocabulary

US / m /

UK / m /

A1
  • exclamation
  • Sound people make when they are confused

measure

Copy vocabulary

US / ˈmeʒə(r) /

UK / ˈmɛʒɚ /

A1
  • noun
  • Plan to achieve a desired result
  • Tool used to calculate the size of something
  • verb
  • To determine the value or importance of something
  • To calculate size, weight or temperature of

now

Copy vocabulary

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

rectify

Copy vocabulary

US / 'rektɪfaɪ /

UK / ˈrɛktəˌfaɪ /

B2
  • verb
  • To correct something that went wrong

operate

Copy vocabulary

US / ˈɒpəreɪt /

UK / ˈɑ:pəreɪt /

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

organ

Copy vocabulary

US / 'ɔ:ɡən /

UK / ˈɔrɡən /

B1
  • noun
  • Part of a person's body with a particular function
  • Large institution or body
  • Large wind instrument similar to a piano

want

Copy vocabulary

US / wɔnt /

UK / wɑnt, wɔnt /

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

video

Copy vocabulary

US / 'vɪdɪəʊ /

UK / ˈvɪdiˌo /

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

cut

Copy vocabulary

US / kʌt /

UK / kʌt /

A1
  • noun
  • Act/instance of reducing the size or amount of
  • Small opening made using a sharp object, knife
  • A wound on someone's skin caused by a sharp object
  • verb
  • To reduce the size or amount of something
  • To use knife or scissors to divide, open surfaces

good

Copy vocabulary

US / ɡʊd /

UK / ɡʊd /

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

give

Copy vocabulary

US / ɡɪv /

UK / ɡɪv /

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

inward

Copy vocabulary

US / ˈɪnwəd /

UK / ˈɪnwərd /

B1
  • adverb
  • At the inside of

muffin

Copy vocabulary

US / ˈmʌfɪn /

UK / ˈmʌfɪn /

C1
  • noun
  • Small sweet cake that often contains fruit

single

Copy vocabulary

US / 'sɪŋɡl /

UK / ˈsɪŋɡəl /

A1
  • adjecitve
  • Being one only, without others
  • Only; merely
  • Not married or in a relationship
  • noun
  • One run in cricket or a hit baseball
  • An individual song from a CD or album
  • Person who is not married or in a relationship

underground

Copy vocabulary

US / ˈʌndəgraʊnd /

UK / ˈʌndərgraʊnd /

B1
  • adjecitve
  • (Being or living) under the surface of the earth
  • noun
  • Secret group organized to overthrow a government
  • Subway system, e.g. in London

bypass

Copy vocabulary

US / ˈbaɪpɑ:s /

UK / ˈbaɪˌpæs /

B2
  • noun
  • A road that goes around a town or village
  • verb
  • To go around something; avoid

creature

Copy vocabulary

US / ˈkri:tʃə(r) /

UK / ˈkritʃɚ /

A2
  • noun
  • Animal of any type

liver

Copy vocabulary

US / ˈlɪvə(r) /

UK / ˈlɪvɚ /

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

role

Copy vocabulary

US / rəʊl /

UK / rol /

A2
  • noun
  • Character played by an actor
  • Part you play in an activity; job; responsibility

same

Copy vocabulary

US / seɪm /

UK / sem /

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

starbuck

Copy vocabulary

US / ˈstɑrˌbʌk /

UK / /

A1

conference

Copy vocabulary

US / ˈkɒnfərəns /

UK / ˈkɑnfərəns, -frəns /

A2
  • noun
  • Series of lectures held as an event
  • An association of US sports teams

knot

Copy vocabulary

US / nɒt /

UK / nɑ:t /

B1
  • noun
  • Secure form of tying a rope, string etc.
  • verb
  • To tie string, rope etc. firmly to stop it undoing

wide

Copy vocabulary

US / waɪd /

UK / waɪd /

A1
  • adjecitve
  • Having a great distance from one side to the other
  • adverb
  • Fully; completely

can

Copy vocabulary

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

fifth

Copy vocabulary

US / fɪfθ /

UK / fɪfθ /

A1
  • noun
  • 5th

doctor

Copy vocabulary

US / ˈdɒktə(r) /

UK / ˈdɑːktɚ /

A1
  • noun
  • Person paid to help people become or stay healthy
  • Person awarded the highest university degree
  • verb
  • To treat someone's illness
  • To change something in order to trick someone

forever

Copy vocabulary

US / fər'evə(r) /

UK / fɔrˈɛvɚ, fə- /

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

keep

Copy vocabulary

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

rather

Copy vocabulary

US / 'rɑ:ðə(r) /

UK / ˈræðɚ, ˈrɑðɚ /

A1
  • adverb
  • Somewhat; fairly; not that much

another

Copy vocabulary

US / əˈnʌðə(r) /

UK / əˈnʌðɚ /

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

girl

Copy vocabulary

US / gɜ:l /

UK / gɜ:rl /

A1
  • noun
  • A female child; a young woman

participate

Copy vocabulary

US / pɑ:ˈtɪsɪpeɪt /

UK / pɑ:rˈtɪsɪpeɪt /

B1
  • verb
  • To take part with others in doing something

back

Copy vocabulary

US / bæk /

UK / bæk /

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

hope

Copy vocabulary

US / həʊp /

UK / hop /

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

huh

Copy vocabulary

US / hʌ /

UK / hʌ /

A1
  • exclamation
  • Sound people make when they are confused

lot

Copy vocabulary

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

until

Copy vocabulary

US / ənˈtɪl /

UK / ʌnˈtɪl /

A1
  • conjunction
  • Up to; to a time when something happens
  • preposition
  • Before (a specific time)

call

Copy vocabulary

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

cross

Copy vocabulary

US / krɒs /

UK / krɔs, krɑs /

A2
  • adjecitve
  • Angry and upset
  • From one side of something to the other
  • noun
  • (Of animals) mixture of breeds in one animal
  • Person's name
  • verb
  • To put one thing over another e.g. arms
  • To breed one type of animal or plant with another
  • To not to agree with someone; oppose
  • To go from one side of something to the other
  • To meet at one point

leave

Copy vocabulary

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

inaccessible

Copy vocabulary

US / ˌɪnækˈsesəbl /

UK / ˌɪnækˈsɛsəbəl /

A2
  • adjecitve
  • Difficult or impossible to get or get into

where

Copy vocabulary

US / hwɛə /

UK / hwɛr, wɛr /

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

surgery

Copy vocabulary

US / 'sɜ:dʒərɪ /

UK / ˈsɚdʒəri /

B1
  • noun
  • A doctor's office; health clinic
  • Medical operation involving cutting into body

completely

Copy vocabulary

US / kəmˈpli:tli /

UK / kəmˈpliːtli /

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

invoke

Copy vocabulary

US / ɪn'vəʊk /

UK / ɪnˈvok /

B1
  • verb
  • To appeal for help/protection to higher authority
  • To use a law, concept, or right to achieve a goal

only

Copy vocabulary

US / ˈəunli /

UK / ˈonli /

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

put

Copy vocabulary

US / pʊt /

UK / pʊt /

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

ten

Copy vocabulary

US / ten /

UK / tɛn /

A1
  • number
  • 10

two

Copy vocabulary

US / tu: /

UK / tu /

A1
  • number
  • 2

from

Copy vocabulary

US / frəm /

UK / frʌm, frɑm,frəm /

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

escape

Copy vocabulary

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

plug

Copy vocabulary

US / plʌg /

UK / plʌɡ /

B1
  • noun
  • Wood, rubber or metal used to block a hole
  • Thing on a wire to connect to electricity supply
  • A promotion of a product
  • verb
  • To use an object to block a hole
  • To promote or advertise a product

over

Copy vocabulary

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

any

Copy vocabulary

US / 'enɪ /

UK / ˈɛni /

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

anybody

Copy vocabulary

US / ˈenibɒdi /

UK / ˈenibʌdi /

A1
  • pronoun
  • Any person; anyone

come

Copy vocabulary

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

game

Copy vocabulary

US / ɡeɪm /

UK / ɡem /

A1
  • noun
  • Activity with rules that people play to have fun
  • Birds and animals people hunt to kill and eat
  • Match between two teams

floor

Copy vocabulary

US / flɔ:(r) /

UK / flɔr, flor /

A1
  • noun
  • Large area used for a particular purpose
  • Part of a room on which you stand
  • Particular level in a building; storey
  • verb
  • To hit or push someone to the ground
  • To surprise or confuse someone who can't respond

ribbon

Copy vocabulary

US / ˈrɪbən /

UK / ˈrɪbən /

B1
  • noun
  • Long thin piece of cloth for tying hair/decoration

skin

Copy vocabulary

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

think

Copy vocabulary

US / θɪŋk /

UK / θɪŋk /

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

spleen

Copy vocabulary

US / spli:n /

UK / splin /

C1
  • noun
  • Organ near stomach that controls quality of blood

bar

Copy vocabulary

US / bɑ:(r) /

UK / bɑ:r /

A2
  • noun
  • Piece of (soap, chocolate etc.)
  • Professional organization of lawyers and judges
  • String of musical notes
  • Place to meet friends and buy alcoholic drinks
  • Long solid round piece of metal shaped like a pipe
  • verb
  • To prevent entry, exit or an action

chuck

Copy vocabulary

US / tʃʌk /

UK / tʃʌk /

B2
  • noun
  • Person's name
  • verb
  • To throw carelessly or casually

flat

Copy vocabulary

US / flæt /

UK / flæt /

A2
  • adjecitve
  • Level; even; without curves or bumps
  • Lifeless; lacking energy or vitality
  • adverb
  • In a certain, direct or absolute manner
  • Against a surface without lifting or curving away
  • noun
  • Apartment; set of rooms for living in
  • The smooth or level part of something
  • Musical tone lower than another by a small degree
  • verb
  • To share an apartment with someone

meet

Copy vocabulary

US / mi:t /

UK / mit /

A1
  • noun
  • Sporting competition e.g. swimming
  • verb
  • To provide something that is necessary
  • To come together at a certain time or place

away

Copy vocabulary

US / ə'weɪ /

UK / əˈwe /

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

calculate

Copy vocabulary

US / 'kælkjʊleɪt /

UK / ˈkælkjəˌlet /

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

dude

Copy vocabulary

US / du:d /

UK / dud, djud /

B2

world

Copy vocabulary

US / wɜ:ld /

UK / wɜrld /

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

almost

Copy vocabulary

US / 'ɔ:lməʊst /

UK / ˈɔlˌmost, ɔlˈmost /

A1
  • adverb
  • Only a little less than, nearly, not quite

before

Copy vocabulary

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

last

Copy vocabulary

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

have

Copy vocabulary

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

lung

Copy vocabulary

US / lʌŋ /

UK / lʌŋ /

B1
  • noun
  • One of the two organs we use to breathe

outer

Copy vocabulary

US / ˈaʊtə(r) /

UK / ˈaʊtɚ /

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

six

Copy vocabulary

US / sɪks /

UK / sɪks /

A1
  • number
  • 6

part

Copy vocabulary

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

tyson

Copy vocabulary

US / ˈtaɪsən /

UK / /

A1

without

Copy vocabulary

US / wɪˈðaʊt /

UK / wɪðˈaʊt, wɪθ- /

A1
  • preposition
  • Not with; not having

breakfast

Copy vocabulary

US / ˈbrekfəst /

UK / ˈbrɛkfəst /

A2
  • noun
  • First meal of the day
  • verb
  • To have the first meal of the day

variance

Copy vocabulary

US / ˈveəriəns /

UK / ˈvɛriəns, ˈvær- /

B1
  • noun
  • State of not agreeing
  • (Statistics) amount of difference in distributions

violate

Copy vocabulary

US / ˈvaɪəleɪt /

UK / ˈvaɪəˌlet /

B1
  • verb
  • To abuse, damage or disrespect
  • To break rules or laws; disregard important rights
  • To force sex acts on a person against their will

with

Copy vocabulary

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

car

Copy vocabulary

US / kɑ:(r) /

UK / kɑr /

A1
  • noun
  • A vehicle with wheels and engine to carry people

freeway

Copy vocabulary

US / 'fri:weɪ /

UK / ˈfriˌwe /

C1
  • noun
  • Highway that can be used without paying a toll

low

Copy vocabulary

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

magically

Copy vocabulary

US / 'mædʒɪklɪ /

UK / 'mædʒɪklɪ /

B1
  • adverb
  • In a manner that uses or involves magic

see

Copy vocabulary

US / si: /

UK / si /

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

serve

Copy vocabulary

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

transition

Copy vocabulary

US / trænˈzɪʃn /

UK / trænˈzɪʃən, -ˈsɪʃ- /

B1
  • noun
  • Change from one state, movement, place to another
  • verb
  • To change state, movement, place, or subject

count

Copy vocabulary

US / kaʊnt /

UK / kaʊnt /

A2
  • noun
  • Number of things added together, e.g. votes
  • With the number of crimes, knockouts, as stated
  • verb
  • To add things together to find the total number
  • To matter or be important
  • To include someone or something in a final number

dementia

Copy vocabulary

US / dɪˈmenʃə /

UK / dɪˈmɛnʃə /

B2
  • noun
  • Illness characterized by loss of memory

end

Copy vocabulary

US / end /

UK / ɛnd /

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

exist

Copy vocabulary

US / ɪɡ'zɪst /

UK / ɪɡˈzɪst /

A1
  • verb
  • To be present, alive or real

twelve

Copy vocabulary

US / twelv /

UK / twɛlv /

A1
  • number
  • 12

hand

Copy vocabulary

US / hænd /

UK / hænd /

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

location

Copy vocabulary

US / ləʊˈkeɪʃn /

UK / loʊˈkeɪʃn /

B1
  • noun
  • Particular position or area of place, event, etc.

mind

Copy vocabulary

US / maɪnd /

UK / maɪnd /

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

break

Copy vocabulary

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

air

Copy vocabulary

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

full

Copy vocabulary

US / fʊl /

UK / fʊl /

A1
  • adjecitve
  • Containing all the parts; complete
  • Containing or holding as much as possible
  • Having had enough food
  • adverb
  • In a direct manner; completely

draw

Copy vocabulary

US / drɔ: /

UK / drɔ /

A1
  • noun
  • Something that attracts people to visit a place
  • A lottery or prize
  • Result of a game, contest where the score is equal
  • verb
  • To attract attention to someone or something
  • To get closer to or approach something or someone
  • To influence a person's involvement in something
  • To move an object by pulling
  • To create an image using pen or pencil and paper
  • To take one thing out of a container, etc.
  • (Of 2 teams) to finish a game with the same score

hear

Copy vocabulary

US / hɪə(r) /

UK / hɪr /

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

could

Copy vocabulary

US / kəd /

UK / kʊd /

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

know

Copy vocabulary

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

whoa

Copy vocabulary

US / wəʊ /

UK / woʊ /

C1
  • exclamation
  • Tell someone to do something more slowly

look

Copy vocabulary

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

miss

Copy vocabulary

US / mɪs /

UK / mɪs /

A1
  • noun
  • Action of not hitting something or someone
  • Form of address to unmarried girl or woman
  • verb
  • To be absent
  • To fail to hit something e.g. a ball
  • To do without something
  • To fail to see or sense something
  • To fail to understand someone's message
  • To be too late to ride on something e.g. train
  • To feel you want to see someone who is not there

thank

Copy vocabulary

US / θæŋk /

UK / θæŋk /

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

fourth

Copy vocabulary

US / fɔ:θ /

UK / fɔ:rθ /

A1
  • noun
  • 4th

string

Copy vocabulary

US / strɪŋ /

UK / strɪŋ /

A2
  • noun
  • A line of connected objects
  • Thick thread; thin rope
  • verb
  • To tie or connect things together with a thread

direction

Copy vocabulary

US / də'rekʃn /

UK / dɪˈrɛkʃən, daɪ- /

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

else

Copy vocabulary

US / els /

UK / ɛls /

A1
  • adverb
  • Otherwise; if you fail to
  • (Of person place thing etc.) besides; in addition

implicitly

Copy vocabulary

US / ɪm'plɪsɪtlɪ /

UK / ɪmˈplɪsɪtlɪ /

B1
  • adverb
  • Without doubting or questioning

heart

Copy vocabulary

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

move

Copy vocabulary

US / mu:v /

UK / muv /

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

rap

Copy vocabulary

US / ræp /

UK / ræp /

B1
  • noun
  • Music with a strong beat and spoken lyrics
  • verb
  • To hit sharply or repeatedly with something

their

Copy vocabulary

US / ðɛː /

UK / ðer /

A1
  • determiner
  • Belonging to them

way

Copy vocabulary

US / weɪ /

UK / we /

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

useful

Copy vocabulary

US / ˈju:sfl /

UK / ˈjusfəl /

A1
  • adjecitve
  • That can help with a particular task

zoom

Copy vocabulary

US / zu:m /

UK / zum /

B1
  • noun
  • Camera lens used to magnify images
  • verb
  • To move along or go somewhere very quickly

evidence

Copy vocabulary

US / 'evɪdəns /

UK / ˈɛvɪdəns /

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

length

Copy vocabulary

US / leŋθ /

UK / leŋθ /

A2
  • noun
  • Distance from one end of a pool to the other
  • Measurement of distance or of time

pretty

Copy vocabulary

US / 'prɪtɪ /

UK / ˈprɪti /

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

possible

Copy vocabulary

US / ˈpɒsəbl /

UK / ˈpɑsəbəl /

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

relativity

Copy vocabulary

US / ˌreləˈtɪvəti /

UK / ˌrɛləˈtɪvɪti /

C2
  • noun
  • Einstein theory about time, space and position

analogous

Copy vocabulary

US / əˈnæləgəs /

UK / əˈnæləɡəs /

B2
  • adjecitve
  • Similar and comparable to

add

Copy vocabulary

US / æd /

UK / æd /

A1
  • verb
  • To include as well
  • To put two things or numbers together, e.g. 2+2

take

Copy vocabulary

US / teɪk /

UK / tek /

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

between

Copy vocabulary

US / bɪˈtwi:n /

UK / bɪˈtwin /

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

gut

Copy vocabulary

US / ɡʌt /

UK / ɡʌt /

B1
  • noun
  • Stomach and internal organs of digestion
  • Guts courage; emotional strength
  • verb
  • To destroy the inside of a building , e.g. by fire
  • To remove the internal parts of an animal or fish

topic

Copy vocabulary

US / 'tɒpɪk /

UK / ˈtɑpɪk /

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

untie

Copy vocabulary

US / ʌn'taɪ /

UK / ʌnˈtaɪ /

B1
  • verb
  • To release something that was tied up

they

Copy vocabulary

US / ðeɪ /

UK / ðe /

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

very

Copy vocabulary

US / 'verɪ /

UK / ˈvɛri /

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

america

Copy vocabulary

US / ə'merɪkə /

UK / əˈmɛrɪkə /

A1
  • noun
  • The United States of America; North America and/or South America

everyone

Copy vocabulary

US / ˈevriwʌn /

UK / ˈɛvriˌwʌn /

A1
  • pronoun
  • Every person; everybody

its

Copy vocabulary

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”

pocket

Copy vocabulary

US / 'pɒkɪt /

UK / ˈpɑkɪt /

A2
  • adjecitve
  • (As if) small enough to fit in your pocket
  • noun
  • Small cloth bag sewn into clothing to hold things
  • Area of space
  • verb
  • To put something into your pocket
  • To take or hide something illegally

who

Copy vocabulary

US / hu: /

UK / hu /

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

appendectomy

Copy vocabulary

US / ˌæpenˈdektəmi /

UK / ˌæpenˈdektəmi /

A1
  • noun
  • Surgical removal of the vermiform appendix

change

Copy vocabulary

US / tʃeɪndʒ /

UK / tʃendʒ /

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

both

Copy vocabulary

US / bəuθ /

UK / boθ /

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

hold

Copy vocabulary

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

space

Copy vocabulary

US / speɪs /

UK / spes /

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

travel

Copy vocabulary

US / ˈtrævl /

UK / ˈtrævəl /

A1
  • noun
  • Going to other places, esp. distant places
  • verb
  • To go to a place that is far away

actually

Copy vocabulary

US / ˈæktʃuəli /

UK / ˈæktʃuəli /

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

overpass

Copy vocabulary

US / 'əʊvəpɑ:s /

UK / ˈovɚˌpæs /

A1
  • noun
  • Bridge formed by the upper level of a crossing of two highways at different levels

here

Copy vocabulary

US / hɪə(r) /

UK / hɪr /

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

quick

Copy vocabulary

US / kwɪk /

UK / kwɪk /

A1
  • adjecitve
  • Using very little time; moving far in little time
  • Learning and understanding rapidly and easily

day

Copy vocabulary

US / deɪ /

UK / de /

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

ever

Copy vocabulary

US / 'evə(r) /

UK / ˈɛvɚ /

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

lock

Copy vocabulary

US / lɒk /

UK / lɑ:k /

A2
  • noun
  • Small portion of your hair that hangs together
  • Place on a door, etc. that you close with a key
  • verb
  • To become fixed in place and hard to move
  • To use a key, code so others can't open something

third

Copy vocabulary

US / θɜ:d /

UK / θɜ:rd /

A1
  • adjecitve
  • 3rd: Number after second

always

Copy vocabulary

US / 'ɔ:lweɪz /

UK / ˈɔlwez,-wɪz,-wiz /

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

dimension

Copy vocabulary

US / daɪˈmenʃn /

UK / dɪˈmɛnʃən, daɪ- /

B1
  • noun
  • Number of planes (X, Y, Z axes) an object has
  • Measurement in space, e.g. length or diameter
  • Scope, extent or size of something abstract

already

Copy vocabulary

US / ɔ:lˈredi /

UK / ɔlˈrɛdi /

A1
  • adverb
  • Having happened or been done before this time

itself

Copy vocabulary

US / ɪtˈself /

UK / ɪtˈsɛlf /

A1
  • pronoun
  • Referring to it

many

Copy vocabulary

US / 'menɪ /

UK / ˈmɛni /

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

will

Copy vocabulary

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

contain

Copy vocabulary

US / kənˈteɪn /

UK / kənˈten /

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

component

Copy vocabulary

US / kəmˈpəʊnənt /

UK / kəmˈponənt /

A2
  • adjecitve
  • Being a part of something
  • noun
  • One of the parts that something is made up of

four

Copy vocabulary

US / fɔ:(r) /

UK / fɔr, for /

A1
  • number
  • 4

inside

Copy vocabulary

US / ˌɪn'saɪd /

UK / ɪnˈsaɪd, ˈɪnˌsaɪd /

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

matter

Copy vocabulary

US / 'mætə(r) /

UK / ˈmætɚ /

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

traffic

Copy vocabulary

US / 'træfɪk /

UK / ˈtræfɪk /

A2
  • noun
  • The cars or vehicles on the road
  • Amount of activity over a communication system

wait

Copy vocabulary

US / weɪt /

UK / wet /

A1
  • verb
  • To delay or not do something until later
  • To spend time until an expected thing happens
  • To remain in a place until a thing happens

beat

Copy vocabulary

US / bi:t /

UK / bit /

A2
  • noun
  • Regular movement or rhythm (e.g. heart or music)
  • verb
  • To move in regular motions in order to push blood
  • To strike or hit repeatedly and with great force
  • To mix ingredients together with a fork or machine
  • To play a drum
  • To win against another person or team; defeat

exactly

Copy vocabulary

US / ɪgˈzæktli /

UK / ɪɡˈzæktli /

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

medical

Copy vocabulary

US / ˈmedɪkl /

UK / ˈmɛdɪkəl /

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

sort

Copy vocabulary

US / sɔ:t /

UK / sɔrt /

A1
  • noun
  • Group or class of similar things or people
  • verb
  • To organize things by putting them into groups
  • To deal with things in an organized way

width

Copy vocabulary

US / wɪdθ /

UK / wɪdθ, wɪθ, wɪtθ /

A1
  • noun
  • Distance from one side of something to the other
  • Piece of cloth that has been measured and cut

feel

Copy vocabulary

US / fi:l /

UK / fil /

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

intersect

Copy vocabulary

US / ˌɪntə'sekt /

UK / ˌɪntɚˈsɛkt /

B2
  • verb
  • To divide something by crossing it

past

Copy vocabulary

US / pɑ:st /

UK / pæst /

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

too

Copy vocabulary

US / tu: /

UK / tu /

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

subway

Copy vocabulary

US / ˈsʌbweɪ /

UK / ˈsʌbˌwe /

B1
  • noun
  • Train system running under the ground in a city

someone

Copy vocabulary

US / ˈsʌmwʌn /

UK / ˈsʌmˌwʌn, -wən /

A1
  • pronoun
  • Person who is not known or named

never

Copy vocabulary

US / 'nevə(r) /

UK / ˈnɛvɚ /

A1
  • adverb
  • Not ever; not at any time

operation

Copy vocabulary

US / ˌɒpəˈreɪʃn /

UK / ˌɑpəˈreʃən /

A2
  • noun
  • Business or company, or its activities
  • Functioning; use
  • Medical procedure involving surgery

barrel

Copy vocabulary

US / 'bærəl /

UK / ˈbærəl /

B1
  • noun
  • A round container with curved sides and flat ends
  • Straight tube from which a bullet exits a gun
  • verb
  • To travel at high speed

beautifully

Copy vocabulary

US / ˈbju:tɪfli /

UK / ˈbjutəfəlɪ /

A1
  • adverb
  • Having dome something well
  • In a beautiful manner; well; perfectly

die

Copy vocabulary

US / daɪ /

UK / daɪ /

A1
  • noun
  • Cube with dots numbering 1-6 on it used in games
  • verb
  • To cease to function or work
  • (Of a thing) to stop being used or done
  • (Of a person) to stop living

start

Copy vocabulary

US / stɑ:t /

UK / stɑrt /

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

well

Copy vocabulary

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

within

Copy vocabulary

US / wɪˈðɪn /

UK / wɪðˈɪn, wɪθ- /

A1
  • adverb
  • Inside the limits of an area, time or range
  • preposition
  • From the inside of something

explicitly

Copy vocabulary

US / ɪk'splɪsɪtlɪ /

UK / ɪk'splɪsɪtlɪ /

B1
  • adverb
  • Clearly; specifically

earth

Copy vocabulary

US / ɜ:θ /

UK / ɚθ /

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

fact

Copy vocabulary

US / fækt /

UK / fækt /

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

perimeter

Copy vocabulary

US / pəˈrɪmɪtə(r) /

UK / pəˈrɪmɪtɚ /

B2
  • noun
  • Outline or border; outer edge

ascend

Copy vocabulary

US / ə'send /

UK / əˈsɛnd /

B2
  • verb
  • To rise, go up to a higher level

street

Copy vocabulary

US / stri:t /

UK / strit /

A1
  • noun
  • Road in a city with buildings and places to walk

fella

Copy vocabulary

US / 'felə(r) /

UK / 'felər /

B1
  • noun
  • Way of spelling 'fellows'

imprison

Copy vocabulary

US / ɪm'prɪzn /

UK / ɪmˈprɪzən /

B1
  • verb
  • To put someone (e.g. a criminal) in prison

those

Copy vocabulary

US / ðəʊz /

UK / ðoz /

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

stuff

Copy vocabulary

US / stʌf /

UK / stʌf /

A1
  • noun
  • Generic description for things, materials, objects
  • verb
  • To push material inside something, with force

sweet

Copy vocabulary

US / swi:t /

UK / swit /

A1
  • adjecitve
  • Having a gentle, likable nature
  • Making one feel happy, pleased or content
  • Cute in appearance
  • Tasting like sugar; containing sugar
  • noun
  • Piece of candy, or other food containing sugar

for

Copy vocabulary

US / fə(r) /

UK / fɔr,fə /

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

time

Copy vocabulary

US / taɪm /

UK / taɪm /

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

through

Copy vocabulary

US / θru: /

UK / θru /

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

why

Copy vocabulary

US / waɪ /

UK / hwaɪ, waɪ /

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

cool

Copy vocabulary

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

computer

Copy vocabulary

US / kəmˈpju:tə(r) /

UK / kəmˈpjutɚ /

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

smart

Copy vocabulary

US / smɑ:t /

UK / smɑ:rt /

A2
  • adjecitve
  • Fashionable; well-dressed; well-groomed
  • Looking clean, neat and stylish
  • (Of phones, weapons) with clever features
  • Associated with rich, popular and stylish people
  • Clever; with intelligence
  • adverb
  • Energetic or quick in motion or movement
  • In a clever way; with intelligence
  • noun
  • Feeling of being hurt and upset
  • Sharp, burning pain
  • verb
  • To feel hurt or upset
  • To hurt with an unexpected sharp or burning pain

sorry

Copy vocabulary

US / ˈsɒri /

UK / ˈsɑ:ri /

A1
  • exclamation
  • What you say to admit you were wrong
  • adjecitve
  • Causing others to feel pity; poor
  • Feeling regret or sympathy about wrong thing

coordinate

Copy vocabulary

US / kəʊ'ɔ:dɪneɪt /

UK / ko'ɔrdəˈnet /

B1
  • noun
  • Point on a map defining a location e.g. 135N, 34W
  • verb
  • To match styles or colors that go well together
  • To cause body parts to move smoothly together
  • To make plans to meet a shared goal
  • To bring order and organization to something

fully

Copy vocabulary

US / 'fʊlɪ /

UK / ˈfʊli /

A1
  • adverb
  • Completely or entirely

just

Copy vocabulary

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)

line

Copy vocabulary

US / laɪn /

UK / laɪn /

A1
  • noun
  • Border that divides two places or regions
  • Long crease in the skin, often from age
  • Mark that is long, straight and very thin
  • Row of words, letters or numbers that are written
  • Telephone connection
  • People waiting one behind the other; queue
  • Long thin wire, e.g. for electrical signal
  • verb
  • To put material along the inside of something

talk

Copy vocabulary

US / tɔ:k /

UK / tɔk /

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

anyone

Copy vocabulary

US / ˈeniwʌn /

UK / ˈɛniˌwʌn, -wən /

A1
  • pronoun
  • Any person

boundary

Copy vocabulary

US / 'baʊndrɪ /

UK / ˈbaʊndəri, -dri /

B1
  • noun
  • A division or border to separate two areas

enough

Copy vocabulary

US / ɪˈnʌf /

UK / ɪˈnʌf /

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

mean

Copy vocabulary

US / mi:n /

UK / min /

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

reply

Copy vocabulary

US / rɪˈplaɪ /

UK / rɪˈplaɪ /

A1
  • noun
  • Answer to someone's question
  • A response in speech, writing or action
  • verb
  • To respond by speech, writing or action
  • To give a response in speech, writing or action

watch

Copy vocabulary

US / wɒtʃ /

UK / wɑtʃ /

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

access

Copy vocabulary

US / 'ækses /

UK / ˈæksɛs /

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

digitally

Copy vocabulary

US / 'dɪdʒɪtəlɪ /

UK / 'dɪdʒɪtəlɪ /

A2
  • adverb
  • By means of electronic signals or computers

down

Copy vocabulary

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

during

Copy vocabulary

US / ˈdjʊərɪŋ /

UK / ˈdʊrɪŋ, ˈdjʊr- /

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

then

Copy vocabulary

US / ðen /

UK / ðɛn /

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

step

Copy vocabulary

US / step /

UK / stɛp /

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

suppose

Copy vocabulary

US / sə'pəʊz /

UK / səˈpoʊz /

A2
  • conjunction
  • What if
  • verb
  • To imagine or guess what might happen

place

Copy vocabulary

US / pleɪs /

UK / ples /

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

dimensional

Copy vocabulary

US / dɪ'menʃənəl /

UK / dɪˈmɛnʃənl: /

B1
  • adjecitve
  • Concerning how many planes an object exists in

interesting

Copy vocabulary

US / ˈɪntrəstɪŋ /

UK / ˈɪntrɪstɪŋ, -tərɪstɪŋ, -təˌrɛstɪŋ /

A1
  • adjecitve
  • Taking your attention; making you want to know
  • verb
  • To make someone want to know about something
  • To persuade to do, become involved with something

lane

Copy vocabulary

US / leɪn /

UK / len /

A2
  • noun
  • Marked strip of the road or swimming pool
  • Narrow way or road, often with steep sides
  • Person's name

nothing

Copy vocabulary

US / 'nʌθɪŋ /

UK / ˈnʌθɪŋ /

A1
  • noun
  • Item of little or no value, importance, interest
  • Number or value of zero
  • pronoun
  • Not anything, not a single thing

square

Copy vocabulary

US / skweə(r) /

UK / skwɛr /

A2
  • adjecitve
  • Being fair or honest
  • Multiply a number by itself e.g. 2x2 or 6x6
  • noun
  • Shape with 4 equal length sides and 4 equal angles
  • The result of multiplying Length by the width
  • Open public area in the middle of the town
  • verb
  • To make something balance or be equal
  • To multiply a number by itself, e.g. 2x2 or 6x8
  • To straighten the edge to form a four-sided shape

stay

Copy vocabulary

US / steɪ /

UK / ste /

A1
  • noun
  • Legal order to stop or delay an action
  • Strong rope or wire that supports a ship's mast
  • Period of time spent living in or visiting a place
  • verb
  • To keep trying without giving up
  • To remain in the same place and not move away
  • To spend time visiting a place or someone's home

cell

Copy vocabulary

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'

city

Copy vocabulary

US / 'sɪtɪ /

UK / ˈsɪti /

A1
  • noun
  • Area with many buildings, roads and people

each

Copy vocabulary

US / i:tʃ /

UK / itʃ /

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

yeah

Copy vocabulary

US / jeə /

UK / ˈjɛə, ˈjæə, jɛ- /

A1
  • exclamation
  • Another way of saying 'yes'

about

Copy vocabulary

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)

again

Copy vocabulary

US / ə'ɡen /

UK / əˈɡɛn /

A1
  • adverb
  • One more time, once more

different

Copy vocabulary

US / ˈdɪfrənt /

UK / ˈdɪfrənt /

A1
  • adjecitve
  • Not of the same kind; unlike other things

even

Copy vocabulary

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

fly

Copy vocabulary

US / flaɪ /

UK / flai /

A1
  • noun
  • Common flying insect, sometimes blue in color
  • Opening with fold of cloth hiding zipper on pants
  • verb
  • To move in the wind, e.g. a flag
  • To move at a high speed
  • To travel in a plane, helicopter, balloon etc.
  • To pilot people or items by plane
  • To travel through the air using wings

like

Copy vocabulary

US / laɪk /

UK / laɪk /

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

people

Copy vocabulary

US / 'pi:pl /

UK / ˈpipəl /

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

sit

Copy vocabulary

US / sɪt /

UK / sɪt /

A1
  • verb
  • To take an exam
  • To be in a resting position on a chair
  • To provide seating for people
  • To remain in a still position while being painted

what

Copy vocabulary

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

stitch

Copy vocabulary

US / stɪtʃ /

UK / stɪtʃ /

B1
  • noun
  • Pain in your side after running or exercising
  • Result of sewing thread going in and out of cloth
  • verb
  • To sew cloth or material together

get

Copy vocabulary

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

intuitively

Copy vocabulary

US / ɪn'tju:ɪtɪvlɪ /

UK / ɪnˈtjuɪtɪvlɪ /

B2
  • adverb
  • In a manner based on feelings rather than facts

present

Copy vocabulary

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

prison

Copy vocabulary

US / 'prɪzn /

UK / ˈprɪzən /

A2
  • noun
  • Place the court puts criminals as punishment; jail

virtually

Copy vocabulary

US / ˈvɜ:tʃuəli /

UK / ˈvɚtʃuəli /

B1
  • adverb
  • In an almost complete or entire manner

unravel

Copy vocabulary

US / ʌnˈrævl /

UK / ʌnˈrævəl /

B2
  • verb
  • To work out the meaning of, in a slow careful way

fascinating

Copy vocabulary

US / ˈfæsɪneɪtɪŋ /

UK / ˈfæsəˌnetɪŋ /

B1
  • adjecitve
  • Having your attention fixated as though by a spell
  • Very interesting
  • verb
  • To attract or interest greatly

right

Copy vocabulary

US / raɪt /

UK / raɪt /

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

able

Copy vocabulary

US / 'eɪbl /

UK / ˈebəl /

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

multiple

Copy vocabulary

US / ˈmʌltɪpl /

UK / ˈmʌltəpəl /

B1
  • adjecitve
  • Having or involving more than one of something
  • noun
  • Number produced by multiplying a smaller number
  • Shop with many branches

three

Copy vocabulary

US / θri: /

UK / θri /

A1
  • number
  • Number 3

surface

Copy vocabulary

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.

may

Copy vocabulary

US / meɪ /

UK / me /

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

boggle

Copy vocabulary

US / ˈbɒgl /

UK / ˈbɔ:gl /

C1
  • verb
  • (Eyes) to protrude or come out due to surprise
  • To hesitate because of doubt, fear, or scruples

ready

Copy vocabulary

US / 'redɪ /

UK / ˈrɛdi /

A1
  • adjecitve
  • Being likely or about to do something
  • Being willing to do a task
  • verb
  • To prepare something for use or action

this

Copy vocabulary

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

truck

Copy vocabulary

US / trʌk /

UK / trʌk /

A2
  • noun
  • Homegrown vegetables and fruit for sale
  • Large vehicle suitable for transporting things
  • Simple frame with wheels for moving things; cart
  • verb
  • To transport something on a lorry, van

word

Copy vocabulary

US / wɜ:d /

UK / wɚd /

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

also

Copy vocabulary

US / 'ɔ:lsəʊ /

UK / ˈɔlso /

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

live

Copy vocabulary

US / lɪv /

UK / liv /

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

how

Copy vocabulary

US / haʊ /

UK / haʊ /

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

kind

Copy vocabulary

US / kaɪnd /

UK / kaɪnd /

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

reverse

Copy vocabulary

US / rɪ'vɜ:s /

UK / rɪˈvɚs /

B1
  • noun
  • Setting that makes the vehicle go backward
  • (Drive a vehicle) backward gear of a vehicle
  • Instance of a significant change, for the worse
  • In a backwards order
  • Back part or side of something
  • verb
  • To drive a vehicle backward
  • To change to an opposite state, way or condition
  • To change back to a previous or normal condition
  • To change something to its opposite

sixth

Copy vocabulary

US / sɪksθ /

UK / sɪksθ /

A1
  • noun
  • 6th

man

Copy vocabulary

US / mæn /

UK / mæn /

A1
  • noun
  • Humans in general, including male and female
  • An adult male human being
  • Male who acts in a masculine way; not like a woman
  • verb
  • To control or operate (a machine); be in charge of
  • To operate a machine (a boat, etc.)

below

Copy vocabulary

US / bɪ'ləʊ /

UK / bɪˈlo /

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

image

Copy vocabulary

US / 'ɪmɪdʒ /

UK / ˈɪmɪdʒ /

A2
  • noun
  • Picture, sculpture or painting of something
  • General idea or opinion of something
  • verb
  • To obtain pictures by scanning them with a machine

inner

Copy vocabulary

US / ˈɪnə(r) /

UK / ˈɪnɚ /

A1
  • adjecitve
  • Concerning the inside part of something

make

Copy vocabulary

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

body

Copy vocabulary

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

order

Copy vocabulary

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

outside

Copy vocabulary

US / ˌaʊtˈsaɪd /

UK / aʊtˈsaɪd, ˈaʊtˌsaɪd /

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

universe

Copy vocabulary

US / ˈju:nɪvɜ:s /

UK / ˈjunəˌvɚs /

B2
  • noun
  • All of space that contains planets and stars
  • Things surrounding a person, affecting their life

absurd

Copy vocabulary

US / əb'sɜ:d /

UK / əbˈsɚd, -ˈzɚd /

B1
  • adjecitve
  • So foolish as to be difficult to believe

little

Copy vocabulary

US / 'lɪtl /

UK / ˈlɪtl /

A1
  • adjecitve
  • Being short in length of time
  • Not great in size, amount, or degree; small
  • Being very young or younger than others
  • adverb
  • By an amount or degree that is not very much
  • Not often; rarely
  • noun
  • A person's name

let

Copy vocabulary

US / let /

UK / lɛt /

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

wall

Copy vocabulary

US / wɔ:l /

UK / wɔl /

A1
  • noun
  • High, flat side of a room or building

stretch

Copy vocabulary

US / stretʃ /

UK / strɛtʃ /

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

entire

Copy vocabulary

US / ɪn'taɪə(r) /

UK / ɛnˈtaɪr /

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

into

Copy vocabulary

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

forward

Copy vocabulary

US / 'fɔ:wəd /

UK / ˈfɔrwəd /

A1
  • adjecitve
  • Toward what is ahead; in front
  • Acting in a socially aggressive manner; pushy
  • adverb
  • Toward the front in place; in front
  • Toward a future time; to a more advanced state
  • verb
  • To send something to another address or person

love

Copy vocabulary

US / lʌv /

UK / lʌv /

A1
  • noun
  • Person's name
  • A very strong feeling of affection
  • The person you care very deeply about
  • Strong, deep emotional and sexual attraction
  • verb
  • To care for and like someone very strongly, deeply
  • To like doing very much; enjoy greatly
  • To feel a strong emotional and romantic attraction

prisoner

Copy vocabulary

US / 'prɪznə(r) /

UK / ˈprɪzənɚ, ˈprɪznɚ /

A2
  • noun
  • Someone kept in a prison as punishment for a crime

pull

Copy vocabulary

US / pʊl /

UK / pʊl /

A1
  • noun
  • Act of breathing in smoke, as from a pipe
  • Force something has that draws other things to it
  • Using your hands to move something to you
  • verb
  • To breathe in smoke, as from a pipe
  • To hold something and move it toward you
  • To remove something by force

other

Copy vocabulary

US / 'ʌðə(r) /

UK / ˈʌðər /

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

one

Copy vocabulary

US / wʌn /

UK / wʌn /

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

open

Copy vocabulary

US / 'əʊpən /

UK / ˈopən /

A1
  • adjecitve
  • Available for use; accessible
  • Not being hidden; available for others to see
  • Being available for customers to enter or use
  • Allowing everyone to use or take part in
  • Not secret anymore
  • Not closed or shut
  • Willing to accept new ideas and thoughts
  • noun
  • Name for a tennis or golf competition
  • verb
  • To make accessible or able to be used, e.g. road
  • To start the activities or services of a business
  • To make a space or hole appear in something
  • To move or change so that it is no longer closed
  • To start something, e.g. a new business

than

Copy vocabulary

US / ðən /

UK / ðən /

A1
  • conjunction
  • Used to compare two things that are not equal
  • Subtitles section
  • So Chuck, here's a topic I don't think we talk enough about.
  • Dimensions.
  • Dementia, huh?
  • No, no.
  • You may have heard that we live in three dimensions and time is a fourth dimension.
  • Okay.
  • And evidence that it really matters
  • is even if you don't know it explicitly, you know it implicitly that time really matters.
  • Because I can say to you, Chuck, I'll meet you tomorrow at Starbucks.
  • Right.
  • And what's your reply to me?
  • I'll be there all day waiting, man, because I got nothing to do.
  • I got nothing to do.
  • So I'll just be at Starbucks.
  • I'll start off in the morning with some breakfast, maybe a little muffin, and then I'll just stay there until you get there.
  • OK, sorry.
  • I'll meet you at Starbucks at twelve noon.
  • OK, thanks.
  • Thanks.
  • Appreciate that.
  • I gave you a location in space and you had to wait until I gave you a location in time.
  • And that intersection of space and time is called your world line.
  • Whoa, love it.
  • It's called a world line.
  • World line.
  • So for our world lines to intersect, we have to be at the same place at the same time.
  • See now, fellas, if you're smart and you're single, you will hold this one in the back, put it away in your back pocket.
  • You know what I mean?
  • Girl, I just need you as a part of my world line.
  • You know what I'm saying?
  • Rap lines from relativity.
  • Exactly.
  • OK.
  • And let's reverse that.
  • I'll say, Chuck, I'll meet you tomorrow at noon.
  • North America, good for you.
  • Thank you, Earth.
  • Is that all right?
  • Yeah.
  • So we know intuitively you need both the time and the space coordinates conjoined in order to actually meet.
  • Absurd variance in that would be you cross the street and ten minutes later a truck barrels through in that same location.
  • Right.
  • So you are in the same location as the truck
  • but not at the same time.
  • You wouldn't say, oh man, I almost died today.
  • You wouldn't, because your world lines missed each other.
  • Right.
  • And you can do that another way.
  • You exist at the same time as the truck, but you know we're near each other in location.
  • Right.
  • What made Zoom and other video conferencing so useful during COVID is that you only had to be at the same time.
  • Right.
  • You didn't have to be at the same place.
  • So you take away one of the components of the world lines and then many more people can participate.
  • But you are converging at the same place virtually or digitally.
  • I mean, I have my image of you on my computer, but it's not you.
  • So let's keep talking about dimensions, ready?
  • So we have one dimension, which is just a line.
  • The measure of the line is the length.
  • There's no other measurement you can make of it that has any meaning.
  • It does not have a width.
  • Now you can add another dimension.
  • Let's call that X. We add a Y, and now you have a surface.
  • A plane.
  • A plane, and then it's two dimensions, X and Y, okay?
  • So you can make a square out of that, couldn't you?
  • Yeah.
  • Two dimensional beings who live in that surface, to everyone else in that surface, they only have an outer perimeter.
  • Right.
  • You can't see inside their bodies.
  • They're all inside the flat plane.
  • Inside the flat plane.
  • That's all they can see.
  • All you see is the edge of them.
  • Right, the edge.
  • So medical surgery in a two dimensional universe, they'd have to cut you open, part you, and then reach in and do what they need to, come out, and then stitch you up again.
  • OK?
  • Right.
  • If we live in three dimensions,
  • you get to look down on that flat world and see all the inner guts of every living creature in that universe.
  • Because there is no boundary above and below.
  • It's only within the plane itself.
  • You can see the heart beating.
  • You can see the spleen, the liver, the pancreas, the lungs.
  • You can see it all.
  • In fact,
  • if you wanted to be a surgeon for that world, you could go in, cut out the appendix if they needed appendectomy and never have to cut through their outer boundary.
  • You'd be like magically going into their body.
  • Dimensional surgery.
  • Dimensional surgery.
  • They would have no access
  • or even awareness that that was even possible, but you do.
  • And you can go in and rectify that.
  • So now, we are in three dimensions.
  • We reveal our skin in all directions to the other people.
  • So our skin is the boundary between our innards and a medical doctor.
  • If they want to get inside you, they got to cut you open.
  • A four dimensional creature
  • can just look inside our bodies.
  • Oh, I feel violated.
  • I know.
  • Oh.
  • I hope no one's watching right now.
  • God.
  • Anyone from the fourth spatial dimension has full access to your entire body's innards.
  • Oh.
  • They could pull stuff out, put stuff in, operate, whatever.
  • We are the game operation to anybody in the fourth dimension.
  • What I'm saying is, if you had what you beautifully refer to as dimensional surgery, you would be able to operate without ever cutting someone open, provided you come from a higher dimension inward.
  • And it is completely analogous to be a four dimensional surgeon operating on us without cutting us open, to be we as three dimensional surgeons operating on two dimensional creatures, because you could just see all their organs just sitting there.
  • Now, we can move forward and back, left and right, up and down, okay?
  • Those are the three spatial dimensions.
  • But the time dimension, you don't have access to the past or the future.
  • We are prisoners of the present.
  • forever transitioning between our inaccessible past and our unknowable future.
  • Well, let's think this through.
  • How would you imprison a two dimensional creature?
  • Draw a line.
  • What kind of line?
  • A square.
  • A square.
  • Just draw a square.
  • That's its prison cell.
  • Yeah.
  • But we say, wait, just step up out of it and then you escape.
  • Good to go.
  • I don't know what you're talking about.
  • I'm fully locked in.
  • Fully locked in.
  • How do we put us in a cell?
  • We have six walls.
  • Right.
  • A ceiling floor, four walls around us.
  • Right.
  • We think we are completely contained within it.
  • Higher dimensional creatures, just step out and then step back in and you're outside the cell.
  • We said, I don't know what you're talking about.
  • Right.
  • Wait a minute.
  • I said a four dimensional creature.
  • If we had access to the fourth dimension, which for us is what?
  • Time.
  • Time.
  • But wait, we're prisoners of time.
  • So suppose we weren't prisoners of time.
  • Suppose you could move through time the way we move through space.
  • Could you then escape the prison?
  • Yeah, just move to a time when I'm not in prison.
  • Exactly!
  • Just say, let me get out of these six walls here.
  • You just go back to a time before you got put in a prison or go to the future where you were let go from the prison.
  • Each of those counts as escaping the prison without ever breaking down the wall.
  • Right.
  • So time can serve that same role.
  • if you had access to the past and to the future.
  • That's pretty cool, man.
  • Of course, we go higher.
  • There's fifth dimension, sixth dimensions, this sort of thing.
  • And mathematically, you can calculate what all the properties are.
  • And it's fascinating to watch.
  • Another quick one.
  • You ready?
  • Go ahead.
  • Knots in strings only exist in three dimensions.
  • OK.
  • In other words, in a fourth dimension,
  • You hand them a knot in the fourth dimension and say, wait, just pull the ends.
  • And it unravels itself.
  • That's the same thing as we three dimensional people looking at two dimensional people.
  • And they have a string that just has this loop in it, one loop.
  • And they say, how do I untie this?
  • I can't untie.
  • Say, dude, pick up the two ends and stretch.
  • They can't do that.
  • Right.
  • They can't do that.
  • So knots are different things in higher dimensions.
  • The way to do it is you have to make a knot out of a two dimensional ribbon.
  • And there are ways to do that, I think, rather than just out of a string.
  • So a lot of interesting things change and are mind boggling for ascending to a higher dimension.
  • Sweet.
  • One last quick thing.
  • Why does anyone want a flying car?
  • So you can get up and over traffic.
  • So you only really think about flying cars in cities where you're like plugged with traffic and what a flying car gets you is another dimension of travel.
  • But even if you go two dimensions and you have multiple lanes, because now you're in a plane, that can get cloggy too.
  • So, again, a third dimension is wide open.
  • But wait a minute, that means we already have flying cars.
  • It's called the subway.
  • So, if you're in a plane and you're in a subway,
  • Oh, instead of being in the air, it's underground bypassing the traffic you're in.
  • It's still invoked the third dimension.
  • Hmm.
  • But also it means overpasses where the freeway goes right through and the overpass goes.
  • Oh, that's a flying car right there.
  • You invoked another dimension.
  • You have a very low bar for what's called.
  • Let's just say it.
  • So I think that's all the time we have.
  • And in another dimension, we would have all the time in the world.
  • All right.
  • Neil deGrasse Tyson here as always.
  • Keep looking up.