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Why is there no such thing as a 7-cylinder engine?

Video vocabulary

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

inline

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US / ɪŋkt /

UK / ɪŋkt /

A1

slash

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US / slæʃ /

UK / slæʃ /

B2
  • noun
  • Line ( / ) used in writing
  • Long, deep cut, caused by a sharp object
  • verb
  • To cut violently with a sharp object
  • To decrease something by a large amount

something

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US / ˈsʌmθɪŋ /

UK / ˈsʌmθɪŋ /

A1
  • adverb
  • In some degree or measure
  • noun
  • a person or thing of some value or consequence
  • pronoun
  • Thing that is not yet known or named
  • Approximately

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

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

muck

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US / mʌk /

UK / mʌk /

B2
  • noun
  • Dirt; mud; filth

needless

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US / ˈniːdləs /

UK / ˈniːdləs /

B1
  • adjecitve
  • Unnecessary; pointless

proof

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US / pru:f /

UK / pruf /

A2
  • noun
  • Act of showing that something exists or is true
  • Version of a document to be checked for errors
  • Special coating that protects something
  • Something which shows that something else is true
  • verb
  • To read a written work to check for mistakes
  • To protect by painting on a special coating

seize

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US / si:z /

UK / siz /

B1
  • verb
  • To take a place with force, as by military action
  • To arrest or catch someone
  • To take someone's property with legal authority
  • To take hold of something suddenly and violently

where

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US / hwɛə /

UK / hwɛr, wɛr /

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

assign

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US / ə'saɪn /

UK / əˈsaɪn /

B2
  • verb
  • To give someone a particular job to do
  • To give someone credit or blame for something

concept

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US / 'kɒnsept /

UK / ˈkɑnˌsɛpt /

A2
  • noun
  • Abstract idea of something or how it works

chuff

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US / tʃʌf /

UK / tʃʌf /

C2
  • noun
  • Noising puffing or explosive sound

diesel

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US / ˈdi:zl /

UK / ˈdizəl, -səl /

B1
  • noun
  • Heavy mineral oil used for power engines

disaster

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US / dɪ'zɑ:stə(r) /

UK / dɪˈzæstɚ, -ˈsæs- /

A2
  • noun
  • State of extreme ruin and misfortune

entirely

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US / ɪnˈtaɪəli /

UK / ɪnˈtaɪərli /

A2
  • adverb
  • Wholly; completely

from

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US / frəm /

UK / frʌm, frɑm,frəm /

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

minus

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US / ˈmaɪnəs /

UK / ˈmaɪnəs /

A2
  • adjecitve
  • Being close to the bottom of a letter grade
  • noun
  • Negative quality; disadvantage
  • Sign that indicates subtraction
  • preposition
  • Being less than zero in number
  • Used when subtracting one number from another
  • verb
  • To take one number away from another; subtract

out

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US / aʊt /

UK / aʊt /

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

over

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US / 'əʊvə(r) /

UK / ˈovɚ /

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

plug

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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

share

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US / ʃeə(r) /

UK / ʃɛr /

A2
  • noun
  • Part-ownership in a property, business or company
  • Part of a company you own, shown by a certificate
  • verb
  • To divide something between two or more people
  • To allow others to use your things equally
  • To give information, etc. to someone

brand

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US / brænd /

UK / brænd /

A2
  • noun
  • A mark burned on an animal to show who owns it
  • Product made or designed by a named company
  • verb
  • To burn a mark on an animal to show who owns it
  • To describe someone as a liar, coward, etc.
  • To give a famous name to a product or service

completely

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US / kəmˈpli:tli /

UK / kəmˈpliːtli /

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

join

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US / dʒɔɪn /

UK / dʒɔɪn /

A1
  • verb
  • To bring something close to another, to become one
  • To become a member of
  • To participate in an activity with others

nine

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US / naɪn /

UK / naɪn /

A1
  • number
  • 9

only

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US / ˈəunli /

UK / ˈonli /

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

put

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US / pʊt /

UK / pʊt /

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

two

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US / tu: /

UK / tu /

A1
  • number
  • 2

translate

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US / trænsˈleɪt /

UK / trænsˈlet /

A2
  • verb
  • To change something into a different state
  • To be equivalent to; equate to
  • To change a text, speech into a different language
  • To change words from one language into another

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

base

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US / beɪs /

UK / bes /

A2
  • noun
  • Place military personnel live, train, and operate
  • Bottom part of an object that touches a surface
  • Unit of counting, e.g. 10 for counting
  • Most important idea or ingredient to add others
  • Origin or start from which something came
  • Main place where an organization or a person works
  • verb
  • To use as the starting point or origin for
  • To have as the main location for (company, etc.)

guy

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US / ɡaɪ /

UK / ɡaɪ /

A1
  • noun
  • Man; boy; any person

journal

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US / ˈdʒə:nl /

UK / ˈdʒɚnəl /

B1
  • noun
  • A diary; record of what you do every day
  • Magazine of academic papers

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

pen

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US / pen /

UK / pɛn /

A2
  • noun
  • Small fenced area where people or animals are kept
  • Writing tool that uses ink
  • verb
  • To put animals, people in a fenced or closed area
  • To write (a song, love letter, etc.)

any

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US / 'enɪ /

UK / ˈɛni /

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

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

company

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US / 'kʌmpənɪ /

UK / ˈkʌmpəni /

A1
  • noun
  • Good feeling from being with someone else
  • A business that sells things or provides services
  • Guests, especially in your home
  • Being with another person rather than alone

channel

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US / 'tʃænl /

UK / ˈtʃænəl /

B1
  • noun
  • Long hole dug in the ground, e.g. to move water
  • TV or radio station or its programs
  • Method or way of sending or receiving information
  • Narrow passage through which water travels
  • Method or route used for sending or getting things
  • verb
  • To dig a long hole for carrying water
  • To send (e.g. money) to a certain place or person
  • To direct water or liquid through a passage
  • To direct energy or feelings into something

decide

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US / dɪ'saɪd /

UK / dɪˈsaɪd /

A2
  • verb
  • To make a choice or choose after thinking about it
  • To make a legal judgment in court
  • to affect the result of something

help

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US / help /

UK / hɛlp /

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

literally

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US / ˈlɪtərəli /

UK / ˈlɪtərəli /

B1
  • adverb
  • So as to express the exact meaning of something
  • Used to say something is true, even if unlikely

think

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US / θɪŋk /

UK / θɪŋk /

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

displacement

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US / dɪsˈpleɪsmənt /

UK / dɪsˈplesmənt /

B1
  • noun
  • Number of liters a petrol engine has
  • Act of replacing someone or something

early

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US / ˈɜ:li /

UK / ˈɜ:rli /

A1
  • adjecitve
  • Happening or appearing before
  • adverb
  • Coming/happening before others in a time sequence
  • Happening sooner than expected

knife

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US / naɪf /

UK / naɪf /

A1
  • noun
  • Long piece of metal you use for cutting things
  • verb
  • To attack someone with a sharp long blade
  • To move through something easily and quickly

merge

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US / mɜ:dʒ /

UK / mɜ:rdʒ /

B1
  • noun
  • Causing two or more things to combine into one
  • verb
  • To cause two or more things to combine into one
  • To be combined into one

most

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US / məʊst /

UK / most /

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

mostly

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US / ˈməʊstli /

UK / ˈmoʊstli /

A2
  • adverb
  • In large part; mainly or chiefly

another

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US / əˈnʌðə(r) /

UK / əˈnʌðɚ /

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

crankshaft

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US / ˈkræŋkʃɑːft /

UK / ˈkræŋkʃæft /

A1
  • noun
  • Rotating shaft driven by (or driving) a crank

hurt

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US / hɜ:t /

UK / hɚt /

A1
  • noun
  • Mental, emotional, or physical pain
  • verb
  • To cause pain, damage or injury

bad

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US / bæd /

UK / bæd /

A1
  • adjecitve
  • Not good; wrong
  • Lacking in good morals; evil
  • No longer fresh; spoiled

genuinely

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US / 'dʒenjʊɪnlɪ /

UK / ˈdʒɛnjʊɪnlɪ /

A2
  • adverb
  • In a real, actual, not false or artificial way

simulate

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US / 'sɪmjʊleɪt /

UK / ˈsɪmjəˌlet /

B1
  • verb
  • To copy something or look or behave like it

submarine

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US / ˌsʌbməˈri:n /

UK / ˈsʌbməˌrin, ˌsʌbməˈrin /

B2
  • noun
  • Ship that travels above and below the sea

three

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US / θri: /

UK / θri /

A1
  • number
  • Number 3

university

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US / ˌju:nɪ'vɜ:sətɪ /

UK / ˌjunɪˈvɜrsəti /

A1
  • noun
  • High-level educational institution; college

clothing

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US / ˈkləʊðɪŋ /

UK / ˈkloʊðɪŋ /

A2
  • noun
  • Things you wear on your body, e.g. shirt or dress
  • verb
  • To put a certain type of clothing on someone; dress

opposite

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US / ˈɔpəzit /

UK / ˈɑpəzɪt /

A2
  • adjecitve
  • Being totally different from
  • noun
  • Person, thing that is totally different to another
  • preposition
  • Across from or on the side facing something

membership

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US / ˈmembəʃɪp /

UK / ˈmembərʃɪp /

B1
  • noun
  • Being a member of a group; joining a group

sixes

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US / /

UK / /

A1
  • number
  • 6s

yuki

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US / /

UK / /

A1

click

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US / klɪk /

UK / klɪk /

A1
  • noun
  • The sound a computer mouse makes when you press it
  • A short, slight, and sharp sound
  • verb
  • To work well with someone or something
  • To press a computer mouse
  • To make a short, slight, and sharp sound

although

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US / ɔ:lˈðəu /

UK / ɔlˈðo /

A1
  • conjunction
  • Despite the fact that; however

encounter

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US / ɪn'kaʊntə(r) /

UK / ɛnˈkaʊntɚ /

B1
  • noun
  • A chance meeting; unexpected or unplanned meeting
  • verb
  • To come up against a problem or trouble; meet
  • To meet someone or something unexpectedly

fountain

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US / 'faʊntən /

UK / ˈfaʊntən /

B1
  • noun
  • Structure out of which a jet of water comes

favourite

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US / ˈfeɪvərɪt /

UK / 'fevərɪt /

A1
  • adjecitve
  • Best liked or most enjoyed
  • noun
  • A thing that someone likes best or enjoys most

less

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US / les /

UK / lɛs /

A1
  • adjecitve
  • Smaller in amount or degree
  • adverb
  • To a smaller degree
  • noun
  • A smaller amount
  • preposition
  • With the subtraction of

radar

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US / ˈreɪdɑ:(r) /

UK / ˈredɑr /

B2
  • noun
  • Radio device used to find the location of objects

specific

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US / spəˈsɪfɪk /

UK / spɪˈsɪfɪk /

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

spin

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US / spɪn /

UK / spɪn /

B1
  • noun
  • A dizzy feeling your head is turning around
  • A slant or hidden purpose, as in politicians' talk
  • A movement in a rapid turning motion
  • verb
  • To make a ball rotate when throwing it
  • To feel dizzy/confused, as in my head is spinning
  • To convert material such as cotton into thread
  • To move something in a rapid turning motion

solution

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US / səˈlu:ʃn /

UK / səˈluʃən /

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

bank

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US / bæŋk /

UK / bæŋk /

A1
  • noun
  • A financial institution that keeps or lends money
  • The side of a river
  • A row of things in lines (e.g. computers)
  • verb
  • To put or keep your money in a bank
  • To turn a plane when flying; (of a plane) to turn

crack

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US / kræk /

UK / kræk /

B1
  • noun
  • Attempt to achieve a goal or objective
  • Unexpected and hard hit to the body
  • Joke or impolite comment about something
  • Sound that is short, unexpected and loud
  • Small gap between two things or parts of things
  • verb
  • To attempt to achieve a goal or objective
  • To hit someone or something hard and unexpectedly
  • To tell (a joke)
  • To solve a challenging problem or mystery
  • To make a sound that is short, unexpected and loud
  • To lose control, e.g. under pressure; break down
  • To break so lines appear, but it is not in pieces

inner

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US / ˈɪnə(r) /

UK / ˈɪnɚ /

A1
  • adjecitve
  • Concerning the inside part of something

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

outside

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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

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

run

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US / rʌn /

UK / rʌn /

A1
  • noun
  • Journey between two places made by ship or car
  • Series of similar things or successes and failures
  • Act of running; exercise of running
  • verb
  • To depart or travel according to a schedule
  • To cause an animal to move in a certain direction
  • (Of an engine) to be operating
  • To start or use a computer program
  • To flow in a certain direction, like a liquid
  • To manage or operate a business
  • To operate or drive something
  • (Of a road) to go from one place to another
  • To move your legs faster than walking

shaky

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US / ˈʃeɪki /

UK / ˈʃeki /

B1
  • adjecitve
  • Tending to shake, as from weakness or defect

also

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US / 'ɔ:lsəʊ /

UK / ˈɔlso /

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

five

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US / faɪv /

UK / faɪv /

A1
  • number
  • 5

simply

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US / ˈsɪmpli /

UK / ˈsɪmpli /

A1
  • adverb
  • In an easy or clear manner

therefore

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US / ˈðeəfɔ:(r) /

UK / ˈðerfɔ:(r) /

A1
  • adverb
  • And so; for that reason

year

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US / jə: /

UK / jɪr /

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

you

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US / jʊ /

UK / ju /

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

big

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US / bɪɡ /

UK / bɪɡ /

A1
  • adjecitve
  • Popular
  • Serious
  • Large

easily

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US / ˈi:zəli /

UK / ˈizəli /

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

horsepower

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US / ˈhɔ:spaʊə(r) /

UK / ˈhɔrsˌpaʊɚ /

C2
  • noun
  • Unit of power of car engine, etc.

might

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US / maɪt /

UK / maɪt /

A1
  • other
  • Used to politely request an action
  • Used to express that something could happen
  • Power, strength, force or influence

natural

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US / ˈnætʃərəl /

UK / ˈnætʃərəl, ˈnætʃrəl /

A1
  • adjecitve
  • Being as one would expect; being usual or normal
  • Not made by humans; without human intervention

jolt

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US / dʒəʊlt /

UK / dʒolt /

B2
  • noun
  • Sudden shock (e.g. of electricity or surprise)
  • verb
  • To suddenly bump or shock

let

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US / let /

UK / lɛt /

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

packaging

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US / ˈpækɪdʒɪŋ /

UK / ˈpækədʒɪŋ /

A1
  • noun
  • Protective wrapping for a parcel or item for sale
  • verb
  • To present or sell a group of things as one item
  • To put something into a container to store it

rpm

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US / ˌɑ: pi: ˈem /

UK / ˌɑ:r /

A1
  • abbreviation
  • Revolutions per minute

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

combustion

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US / kəmˈbʌstʃən /

UK / kəmˈbʌstʃən /

B2
  • noun
  • An act or instance of burning

complexity

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US / kəm'pleksətɪ /

UK / kəmˈplɛksɪti /

B1
  • noun
  • State of having many parts and not being simple

entire

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US / ɪn'taɪə(r) /

UK / ɛnˈtaɪr /

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

into

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US / 'ɪntə /

UK / ˈɪntu /

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

invent

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US / ɪnˈvent /

UK / ɪnˈvɛnt /

A2
  • verb
  • To create something such as a story or excuse
  • To create something useful for the first time

forward

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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

other

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US / 'ʌðə(r) /

UK / ˈʌðər /

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

power

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US / 'paʊə(r) /

UK / ˈpaʊɚ /

A1
  • noun
  • Legal or official right to perform certain actions
  • Ability to move forcefully and quickly
  • Energy of something (e.g. electricity or fuel)
  • Mathematical way to multiply a number
  • Condition of being in political control
  • Physical force, energy, and strength
  • verb
  • To give energy to something, e.g. by electricity
  • To move something forcefully and quickly

rock

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US / rɒk /

UK / rɑk /

A1
  • noun
  • Type of popular music with a strong, loud beat
  • Strong, tough person who can be relied upon
  • Big stone; hard, solid substance forming mountains
  • verb
  • To be greatly upset by something, e.g. a death
  • To be extremely effective or pleasing
  • To play, sing along with, or dance to heavy music
  • To move back and forth or from side to side

one

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US / wʌn /

UK / wʌn /

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

turn

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US / tɜ:n /

UK / tɚn /

A1
  • noun
  • Place where changing of direction happens
  • Your time or chance to perform a duty
  • Your chance to play or do in say a game
  • Unexpected change, as in the weather
  • verb
  • To become (a particular age)
  • To become a different quality, color, etc.
  • To change the direction of something, e.g. a car
  • To move in an opposite direction or position
  • To shape metal with a spinning tool

than

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US / ðən /

UK / ðən /

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

seventh

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US / 'sevnθ /

UK / ˈsɛvənθ /

A1
  • noun
  • 7th

unnecessary

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US / ʌnˈnesəsəri /

UK / ʌnˈnesəseri /

B1
  • adjecitve
  • Being more than needed or not needed

bottle

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US / 'bɒtl /

UK / ˈbɑtl /

A1
  • noun
  • Container with a narrow neck used to hold liquids
  • verb
  • To put something into a bottle to store it

free

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US / fri: /

UK / fri /

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

harvester

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US / ˈhɑ:vɪstə(r) /

UK / ˈhɑrvɪstɚ /

B1
  • noun
  • Someone who helps to gather crops from the fields

may

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US / meɪ /

UK / me /

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

symmetrical

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US / sɪˈmetrɪkl /

UK / sɪˈmɛtrɪkəl /

B2
  • adjecitve
  • Having parts that are exactly the same

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

box

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US / bɒks /

UK / bɑ:ks /

A1
  • noun
  • A marked area of a baseball field
  • A container with four straight sides and a lid
  • Area of seating in a theater separated from others
  • A 4 sided container or shape printed on a page
  • Entire amount of something inside a container
  • verb
  • To strike someone on the side of the head
  • To pack an object in a six-sided container
  • To fight with gloved hands as a sport

compare

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US / kəm'peə(r) /

UK / kəmˈpɛr /

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

member

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US / ˈmembə(r) /

UK / ˈmɛmbɚ /

A1
  • noun
  • Part of the body of a human, animal
  • Person or thing belonging to a group or team

pick

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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

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US / ˈri:əli /

UK / ˈriəˌli, ˈrili /

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

would

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US / wʊd /

UK / wʊd /

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

internet

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US / ˈɪn.tə.net /

UK / ˋɪntɚ͵nɛt /

A1
  • noun
  • Worldwide computer network system

invention

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US / ɪnˈvenʃn /

UK / ɪnˈvɛnʃən /

A2
  • noun
  • Something new that is different from other things
  • Power or ability to create new things
  • Process of creating a new device or idea

fuel

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US / 'fju:əl /

UK / ˈfjuəl /

A2
  • noun
  • Material used to produce heat or power when burned
  • verb
  • To give power to (a mob, anger, etc.); incite
  • To provide gas or petrol for something

seven

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US / ˈsevn /

UK / ˈsɛvən /

A1
  • number
  • Number 7

want

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US / wɔnt /

UK / wɑnt, wɔnt /

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

video

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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

weight

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US / weɪt /

UK / wet /

A2
  • noun
  • How heavy something is
  • Metal object to measure how heavy something is
  • Importance, power, and influence person, thing has
  • A source of worry, sadness, or emotional stress

attach

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US / ə'tætʃ /

UK / əˈtætʃ /

A2
  • verb
  • To be associated or connected with

bay

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US / beɪ /

UK / be /

B1
  • noun
  • Part of an ocean or lake partly surrounded by land

internal

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US / inˈtə:nəl /

UK / ɪnˈtɚnəl /

B1
  • adjecitve
  • Being or happening in the body
  • Being, happening in a country, state, organization
  • Within or inside; interior; not external

same

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US / seɪm /

UK / sem /

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

subscribe

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US / səb'skraɪb /

UK / səbˈskraɪb /

B1
  • verb
  • To regularly pay to receive a service

tandem

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US / ˈtændəm /

UK / ˈtændəm /

C1
  • adverb
  • A bicycle with two sets of pedals and saddles

smooth

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US / smu:ð /

UK / smuð /

A2
  • adjecitve
  • Moving without stops and starts
  • Pleasant and flat to touch, not rough
  • Being free from problems or difficulties
  • verb
  • To make something rough feel flat, e.g. by ironing
  • To spread a substance over a surface

torsional

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US / ˈtɔːʃənəl /

UK / ˈtɔrʃənl /

C1
  • adjecitve
  • The act of twisting or turning

but

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US / bət /

UK / bʌt,bət /

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

especially

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US / ɪˈspeʃəli /

UK / ɛˈspɛʃəli, ɪˈspɛʃ- /

A1
  • adverb
  • More than usual; extremely

give

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US / ɡɪv /

UK / ɡɪv /

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

good

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US / ɡʊd /

UK / ɡʊd /

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

generally

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US / /

UK / /

A2
  • adverb
  • Usually; as a rule; by, to or for most people

life

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US / laɪf /

UK / laɪf /

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

overlap

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US / ˌəʊvəˈlæp /

UK / ˌoʊvərˈlæp /

B1
  • noun
  • Amount shared in the same space, form, idea
  • verb
  • To lie over or cover a part of something else
  • To happen at the same time as another event
  • To share qualities or functions

single

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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

technically

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US / ˈteknɪkli /

UK / ˈtɛknɪkl:ɪ /

A2
  • adverb
  • In an exact and particular manner

zero

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US / ˈzɪərəʊ /

UK / ˈzɪroʊ /

A1
  • noun
  • Temperature when water turns to ice
  • number
  • Number 0
  • verb
  • To set a scale or other device to show 0

alongside

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US / əˌlɒŋˈsaɪd /

UK / əˌlɔ:ŋˈsaɪd /

B1
  • preposition
  • Side by side with something

famously

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US / ˈfeɪməsli /

UK / ˈfeməsli /

B1
  • adverb
  • In a manner or to an extent that is well known

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

operate

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US / ˈɒpəreɪt /

UK / ˈɑ:pəreɪt /

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

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

description

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US / dɪˈskrɪpʃn /

UK / dɪˈskrɪpʃən /

A2
  • noun
  • Explanation of what something is like, looks like

romeo

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US / ˈrəumiəu /

UK / ˈromiˌo /

A1
  • other
  • An ardent male lover

deliver

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US / dɪ'lɪvə(r) /

UK / dɪˈlɪvɚ /

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

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.

imbalance

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US / ɪm'bæləns /

UK / ɪmˈbæləns /

A2
  • noun
  • A lack of equality so two things are not equal

recent

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US / 'ri:snt /

UK / ˈrisənt /

A1
  • adjecitve
  • Happening or beginning not long ago

ship

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US / ʃɪp /

UK / ʃɪp /

A1
  • noun
  • Large boat
  • verb
  • To transport goods by boat, truck or plane

towards

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US / tə'wɔ:dz /

UK / 'təuədz, twɔ:dz /

A1
  • preposition
  • In the direction of someone or something

versatile

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US / ˈvə:sətail /

UK / ˈvɚsətəl, -ˌtaɪl /

B2
  • adjecitve
  • Having many uses or skills

axial

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US / ˈæksiəl /

UK / ˈæksiəl /

A1
  • adjecitve
  • Forming or rotating around an axis

color

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US / 'kʌlə(r) /

UK / ˈkʌlɚ /

A1
  • noun
  • Quality of things you can see, e.g. red, blue
  • Pink or red in your face, e.g. after being ill
  • The shade of someone's skin e.g. black, or yellow
  • verb
  • To change or affect someone's opinion
  • To make something colorful using colored pencils

distribute

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US / dɪˈstrɪbju:t /

UK / dɪˈstrɪbjut /

A2
  • verb
  • To hand out or give to people
  • To send products to stores to sell
  • To spread something over an area

incredibly

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US / ɪnˈkredəbli /

UK / ɪnˈkrɛdəblɪ /

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

not

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US / nɒt /

UK / nɑt /

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

minute

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US / 'mɪnɪt /

UK / ˈmɪnɪt /

A1
  • adjecitve
  • Very very small
  • noun
  • Notes taken at a meeting to record what was said
  • Short period of time
  • Unit of time equal to 60 seconds
  • verb
  • To record in writing what is said at a meeting

our

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US / 'aʊə(r) /

UK / aʊr /

A1
  • determiner
  • Belonging to us

quite

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US / kwaɪt /

UK / kwaɪt /

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

twist

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US / twɪst /

UK / twɪst /

A2
  • noun
  • Turn or spiral curve in a path or road
  • Bend or sudden change of direction
  • An unexpected change in the direction of a story
  • a change in the way in which something happens
  • verb
  • To turn something in a circular direction
  • To turn in a curving direction e.g. road or path
  • To bend something into a particular shape
  • To change the meaning in an unintended way
  • To turn in opposite directions at the same time
  • To wind something around something else
  • To turn direction or position, as of your body

whole

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US / həul /

UK / hol /

A1
  • adjecitve
  • Complete or full; all of
  • Being in a good condition
  • noun
  • Complete amount or sum; total

bend

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US / bend /

UK / bɛnd /

A2
  • noun
  • When a road changes direction; turn
  • verb
  • To become curved or no longer straight
  • To move your body so that it is not straight up
  • To turn in a different direction, as a road
  • To use force to make an object not straight

enough

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US / ɪˈnʌf /

UK / ɪˈnʌf /

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

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

mighty

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US / 'maɪtɪ /

UK / ˈmaɪti /

B2
  • adjecitve
  • Having great strength or great size
  • adverb
  • Very, extremely

mean

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US / mi:n /

UK / min /

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

dwindle

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US / 'dwɪndl /

UK / ˈdwɪndl /

B2
  • verb
  • To make or become less or smaller gradually

nothing

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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

number

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US / ˈnʌmbə(r) /

UK / ˈnʌmbɚ /

A1
  • noun
  • Symbols such as 1, 2, 56, 793
  • Particular song or dance performed during a show
  • Total quantity or amount of things
  • verb
  • To put numbers on things
  • To assign a sequence within a group, series, set
  • To claim to be part of a larger group, series, set

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)

again

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US / ə'ɡen /

UK / əˈɡɛn /

A1
  • adverb
  • One more time, once more

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

different

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US / ˈdɪfrənt /

UK / ˈdɪfrənt /

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

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

notebook

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US / 'nəʊtbʊk /

UK / ˈnotˌbʊk /

A2
  • noun
  • Book with blank pages used for writing notes

people

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US / 'pi:pl /

UK / ˈpipəl /

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

sit

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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

stylish

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US / ˈstaɪlɪʃ /

UK / ˈstaɪlɪʃ /

A2
  • adjecitve
  • Having elegance or taste in manners or dress

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’

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

example

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US / ɪgˈzɑ:mpl /

UK / ɪɡˈzæmpəl /

A1
  • noun
  • Thing, person which represents a category

cylinder

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US / ˈsɪlɪndə(r) /

UK / ˈsɪləndɚ /

B2
  • noun
  • Tube shape with flat ends

each

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US / i:tʃ /

UK / itʃ /

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

happen

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US / 'hæpən /

UK / ˈhæpən /

A1
  • verb
  • To take place or occur

liter

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US / 'li:tə(r) /

UK / ˈlitɚ /

A1
  • noun
  • Metric unit for measuring liquid or gas

resurrect

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US / ˌrezə'rekt /

UK / ˌrɛzəˈrɛkt /

C2
  • verb
  • To make something forgotten/lost take on new life
  • To bring a person back from the dead

thrum

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US / θrʌm /

UK / θrʌm /

C2
  • verb
  • To make a monotonous humming sound

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

primary

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US / 'praɪmərɪ /

UK / ˈpraɪˌmɛri, -məri /

B2
  • adjecitve
  • Most important, most basic or essential
  • Happening first; earliest
  • of or for the teaching of young children

own

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US / əʊn /

UK / on /

A1
  • adjecitve
  • Belong to oneself
  • determiner
  • Yours, his, hers, etc.; not belonging to another
  • pronoun
  • (Something) belong to myself
  • verb
  • To have something as your property

first

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US / fɜ:st /

UK / fɚst /

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

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

skip

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US / skɪp /

UK / skɪp /

B2
  • noun
  • Very large waste disposal bin
  • verb
  • To move forward by taking fast steps and jumps
  • To not do something expected or required
  • To move rapidly, from one topic to another

rotation

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US / rəʊˈteɪʃn /

UK / roʊˈteɪʃn /

B2
  • noun
  • Regular change of the crops grown in a field
  • Group who take turns performing a certain task
  • Regularly changing the time when people work
  • Movement in a circle around a central point

roughly

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US / ˈrʌfli /

UK / ˈrʌflɪ /

B1
  • adverb
  • Approximately; (of numbers) about; around
  • In a manner that is violent or not careful
  • In an inexact, imprecise or violent way
  • In a basic, simple manner

second

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US / 'sekənd /

UK / ˈsɛkənd /

A1
  • adjecitve
  • 2nd; the one following first
  • noun
  • Unit of time; one sixtieth of a minute
  • Short period of time that you wait for someone
  • (Do) soon
  • verb
  • To agree to support a proposal at a meeting

shaft

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US / ʃɑ:ft /

UK / ʃæft /

B2
  • noun
  • Vertical, sloping passageway leading to a surface
  • verb
  • To ruin the plans or prospects of others

win

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US / wɪn /

UK / wɪn /

A1
  • noun
  • Success in beating the other team or competitors
  • Success in a game or contest
  • verb
  • To get something as a prize because of a success
  • To gain something you want because of your efforts
  • To succeed in a game or contest

essentially

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US / ɪˈsenʃəli /

UK / ɪˈsenʃəli /

A2
  • adverb
  • Basically; (said when stating the basic facts)

monthly

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US / ˈmʌnθli /

UK / ˈmʌnθli /

A2
  • adverb
  • Occurring about once every 4 weeks

value

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US / 'vælju: /

UK / ˈvælju /

A1
  • noun
  • Importance you attach to something
  • Some information expressed as a number
  • Stated price of something; worth
  • verb
  • To place a high importance on something
  • To say how much money something is worth

vibration

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US / vaɪˈbreɪʃn /

UK / vaɪˈbreʃən /

B2
  • noun
  • Shaking motion

extent

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US / ɪkˈstent /

UK / ɪkˈstɛnt /

A2
  • noun
  • Point, level or limit to which something reaches
  • Range or space included in something

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

fire

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US / 'faɪə(r) /

UK / faɪr /

A1
  • noun
  • Heat and the flame produced when burning
  • Intense energy for or about something
  • verb
  • To apply heat to something to make it hard
  • To make a person leave their job; dismiss
  • To shoot a gun or weapon
  • To launch something into the sky, e.g. a rocket
  • To start working on something e.g. a project

force

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US / fɔ:s /

UK / fɔrs, fors /

A1
  • noun
  • Group of persons trained for military action; army
  • Pressure; attraction
  • The use of physical strength/violence to persuade
  • verb
  • To use physical strength or violence to persuade

ink

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US / ɪŋk /

UK / ɪŋk /

A2
  • noun
  • Liquid found in pens
  • verb
  • To sign (a document)

practice

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US / 'præktɪs /

UK / ˈpræktɪs /

A2
  • noun
  • The office and place for legal or medical work
  • Doing something many times to become better at it
  • verb
  • To work as a doctor or lawyer
  • To live according to the teachings of a religion
  • To do something many times to improve a skill

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

cancel

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US / 'kænsl /

UK / ˈkænsəl /

A2
  • verb
  • To end a legal, business, or other agreement
  • To stop a planned event from happening

effectively

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US / ɪˈfektɪvli /

UK / ɪˈfɛktɪvli /

B1
  • adverb
  • In a way that produces the desired result

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

general

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US / 'dʒenrəl /

UK / ˈdʒɛnərəl /

A1
  • adjecitve
  • Widespread, normal or usual
  • noun
  • Top ranked officer in the army

multiply

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US / ˈmʌltɪplaɪ /

UK / ˈmʌltəˌplaɪ /

B1
  • verb
  • To increase in number by reproducing/having babies
  • To increase something by a large quantity
  • To have increased by a large quantity
  • To calculate two numbers e.g. 2 x 4

nice

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US / naɪs /

UK / naɪs /

A1
  • adjecitve
  • Being attractive or of high quality or value
  • Good or enjoyable
  • Being kind or friendly

pay

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US / peɪ /

UK / pe /

A1
  • noun
  • Money you receive from your job, work, etc.
  • verb
  • To give money for goods or work done
  • To give (attention, respect, etc.) to
  • To be punished or suffer for something you did
  • To make (a visit) to a person or place

powered

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US / ˈpaʊəd /

UK / ˈpaʊərd /

A2
  • verb
  • To give energy to something, e.g. by electricity
  • To move something forcefully and quickly

thank

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US / θæŋk /

UK / θæŋk /

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

twin

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US / twɪn /

UK / twɪn /

A2
  • noun
  • Two children born from same mother at same time
  • One of two things that closely resemble each other

introduce

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US / ˌɪntrəˈdju:s /

UK / ˌɪntrəˈdus, -ˈdjus /

A1
  • verb
  • To open an essay to set the scene
  • To guide or explain something, e.g. a town
  • To begin the use of a new thing or practice
  • To make someone known to another by name
  • To insert or put something inside another thing

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

length

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US / leŋθ /

UK / leŋθ /

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

pretty

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US / 'prɪtɪ /

UK / ˈprɪti /

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

main

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US / meɪn /

UK / men /

A1
  • adjecitve
  • Most important; most often used

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

subtract

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US / səbˈtrækt /

UK / səbˈtrækt /

B2
  • other
  • To take away a value or amount from another
  • verb
  • To take away a value or amount from another

speed

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US / spi:d /

UK / spid /

A2
  • noun
  • How fast or slow something is or is done
  • verb
  • To move quickly when completing an action
  • To drive a vehicle faster than laws allow

between

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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

layout

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US / ˈleɪaʊt /

UK / ˈleˌaʊt /

B1
  • noun
  • Plan or design of something, e.g. of book page

otherwise

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US / ˈʌðəwaiz /

UK / ˈʌðɚˌwaɪz /

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

module

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US / ˈmɒdju:l /

UK / ˈmɑ:dʒul /

A2
  • noun
  • Part or unit with a specific job or function

swap

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US / swɒp /

UK / swɑp /

B2
  • noun
  • A trade or exchange of goods without using money
  • verb
  • To exchange goods without spending money; trade

they

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US / ðeɪ /

UK / ðe /

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

add

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US / æd /

UK / æd /

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

link

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US / lɪŋk /

UK / lɪŋk /

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

take

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US / teɪk /

UK / tek /

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

room

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US / ru:m /

UK / rum, rʊm /

A1
  • noun
  • All of the people inside a particular room
  • Part of building enclosed by walls, e.g. kitchen
  • Opportunity to exist, happen, or be true
  • verb
  • To share a home with someone

counterweight

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US / ˈkaʊntəweɪt /

UK / ˈkaʊntərweɪt /

C2
  • noun
  • A weight used to provide opposite balance

else

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US / els /

UK / ɛls /

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

figure

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US / ˈfiɡə /

UK / ˈfɪɡjɚ /

A1
  • noun
  • Your body shape
  • Numbers in a calculation
  • Doll-like thing meant to represent a person
  • Picture or diagram giving information in a text
  • Person who is very important or famous
  • Shape of a person seen indistinctly or in outline
  • Amount that is expressed in numbers
  • verb
  • To appear in a game, play or event
  • To calculate how much something will cost
  • To understand after thinking; work out

design

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US / dɪˈzaɪn /

UK / dɪˈzaɪn /

A1
  • noun
  • The way something is planned, to fulfill a purpose
  • verb
  • To plan in a particular way to fulfill a purpose
  • To think of a plan

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

move

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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

mixture

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US / ˈmɪkstʃə(r) /

UK / ˈmɪkstʃɚ /

B1
  • noun
  • Something made by combining two or more things

quiz

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US / kwɪz /

UK / kwɪz /

B1
  • noun
  • A game in which players answer questions on topics
  • Brief spoken or written test, given to students
  • verb
  • To ask a person many questions about something

their

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US / ðɛː /

UK / ðer /

A1
  • determiner
  • Belonging to them

way

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US / weɪ /

UK / we /

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

aspirate

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US / ˈæspərət /

UK / 'æspərət /

B2
  • verb
  • To pronounce using breath

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

engine

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US / 'endʒɪn /

UK / ˈɛndʒɪn /

A2
  • noun
  • Machine that changes energy into mechanical motion
  • The part of a train that pulls railway cars

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

numerous

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US / ˈnju:mərəs /

UK / ˈnumərəs, ˈnju- /

B1
  • adjecitve
  • Existing in large numbers

simple

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US / 'sɪmpl /

UK / ˈsɪmpəl /

A1
  • adjecitve
  • Not hard to understand or do; not complex
  • Having only a few parts; not complex
  • Being ordinary or normal
  • Being plain; without a lot added for style

space

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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

triple

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US / ˈtrɪpl /

UK / ˈtrɪpəl /

B2
  • noun
  • Group or set of three

fill

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US / fɪl /

UK / fɪl /

A1
  • noun
  • Act of filling; amount used to make something full
  • verb
  • To make something full
  • To move into all parts of an area
  • To repair a surface by adding a substance to it
  • To use (time); to do something during

heavy

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US / 'hevɪ /

UK / ˈhɛvi /

A1
  • adjecitve
  • Greater in amount, degree, or severity than usual
  • Involving serious or strong emotions
  • Having a lot of weight

naturally

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US / ˈnætʃrəli /

UK / ˈnætʃərəli, ˈnætʃrə- /

A2
  • adverb
  • In the expected or usual way
  • Without the aid of someone or something

lessen

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US / 'lesn /

UK / ˈlɛsən /

A2
  • verb
  • To make something smaller in amount or importance

post

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US / pəʊst /

UK / post /

A1
  • noun
  • Message delivered or shared in an online group
  • Piece of wood, metal in the ground for support
  • Job or position within an organization or company
  • Place where a soldier, etc. is ordered to go
  • verb
  • To send a letter or package using stamps
  • To share a message on an internet discussion group
  • To send a soldier somewhere to do a job
  • To put a message in public for everyone to see

throw

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US / θrəʊ /

UK / θroʊ /

A1
  • noun
  • Arm movement to make a thing fly through the air
  • Loose cloth or blanket (usually over a chair)
  • Forcibly putting someone on the ground
  • verb
  • To use your arm to make something fly in the air
  • To move part of your body suddenly and forcefully
  • To confuse or upset someone
  • (E.g. judo) to forcibly put someone on the ground
  • To put something somewhere suddenly and roughly

work

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US / wɜ:k /

UK / wɚk /

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

worry

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US / ˈwʌri /

UK / ˈwɜ:ri /

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

actually

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US / ˈæktʃuəli /

UK / ˈæktʃuəli /

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

stick

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US / stɪk /

UK / stɪk /

A2
  • noun
  • Long thin piece of wood from a tree
  • verb
  • To push a sharp or pointed object into something
  • To join together using glue or paste
  • To remain in one place or position for a long time

uniform

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US / ˈju:nɪfɔ:m /

UK / ˈju:nɪfɔ:rm /

A2
  • adjecitve
  • Not changing your conduct or opinion
  • noun
  • Set of clothes showing you belong to an army, etc.
  • verb
  • To dress in formal clothes like the army wear
  • To make a group of things the same

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

describe

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US / dɪ'skraɪb /

UK / dɪˈskraɪb /

A1
  • verb
  • To tell the appearance, sound, smell of something

itself

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US / ɪtˈself /

UK / ɪtˈsɛlf /

A1
  • pronoun
  • Referring to it

khaki

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US / 'kɑ:kɪ /

UK / ˈkæki /

C1
  • noun
  • Yellowish-brown cloth, e.g. used for army uniform

many

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US / 'menɪ /

UK / ˈmɛni /

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

silence

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US / 'saɪləns /

UK / ˈsaɪləns /

A2
  • noun
  • State of being quiet and not talking for a time
  • When there is not sound or noise; complete quiet
  • Refusal to discuss or talk about an issue
  • verb
  • To stop the noise that something is making
  • To prevent someone from expressing thoughts

stiff

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US / stɪf /

UK / stɪf /

B1
  • adjecitve
  • Frozen still due to fear or anger
  • Not able to be bent
  • noun
  • Slang term for a dead body

thousand

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US / ˈθaʊznd /

UK / ˈθaʊzənd /

A1
  • number
  • Number 1,000

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

balance

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US / ˈbæləns /

UK / ˈbæləns /

A2
  • noun
  • Instrument for weighing things
  • Being stable; having equal weight on both sides
  • Money remaining after paying costs
  • verb
  • To be steady by having equal weight on both sides
  • To make two or more things equal

balanced

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US / ˈbælənst /

UK / ˈbælənst /

A2
  • adjecitve
  • Being stable having equal weight on both sides
  • verb
  • To be steady by having equal weight on both sides
  • To make two or more things equal

massive

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US / ˈmæsɪv /

UK / ˈmæsɪv /

B1
  • adjecitve
  • Very big; large; too big

modular

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US / 'mɒdjələ(r) /

UK / ˈmɑdʒəlɚ /

A2
  • adjecitve
  • Constructed with standardized units or dimensions

secondary

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US / ˈsekəndri /

UK / ˈsekənderi /

A1
  • adjecitve
  • Being of less importance than something else

bag

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US / bæɡ /

UK / bæɡ /

A1
  • noun
  • Soft container to put things in and carry with you
  • verb
  • To catch an animal while hunting
  • To put an item or items into a bag

divide

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US / dɪ'vaɪd /

UK / dɪˈvaɪd /

A2
  • verb
  • To split numbers by another number, e.g. 6 / 2 = 3
  • To separate something into equal pieces

four

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US / fɔ:(r) /

UK / fɔr, for /

A1
  • number
  • 4

imagine

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US / ɪ'mædʒɪn /

UK / ɪˈmædʒɪn /

A1
  • verb
  • To think creatively about; form mental picture of

inside

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US / ˌɪn'saɪd /

UK / ɪnˈsaɪd, ˈɪnˌsaɪd /

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

piston

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US / 'pɪstən /

UK / ˈpɪstən /

B2
  • noun
  • Sliding, cylindrical piece moved by fuel pressure

probably

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US / ˈprɒbəbli /

UK / ˈprɑbəbli /

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

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

associate

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US / ə'səʊʃɪeɪt /

UK / əˈsoʊʃiˌeɪt /

B1
  • adjecitve
  • Part of a job title indicating a junior position
  • noun
  • Partner in professional work, e.g. in law
  • verb
  • To spend time with other people; mix with
  • To form a connection in your mind between things

bulky

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US / ˈbʌlki /

UK / ˈbʌlki /

B1
  • adjecitve
  • Large and awkward to carry or put somewhere

club

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US / klʌb /

UK / klʌb /

A1
  • noun
  • Group of people who share an interest, as in sport
  • Place where people go to listen to music and dance
  • Long stick used for hitting things, as in golf
  • verb
  • To be grouped with others
  • To hit hard with a thick and heavy stick, weapon

alfa

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US / ˈælfə /

UK / ˈælfə /

A1

combine

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US / kəmˈbaɪn /

UK / kəmˈbaɪn /

A2
  • verb
  • To mix several things together to form one thing

develop

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US / dɪ'veləp /

UK / dɪˈvɛləp /

A1
  • verb
  • To explain something in steps and in detail
  • To create or think of something
  • To grow bigger, more complex, or more advanced
  • To make a photograph from film

explain

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US / ɪk'spleɪn /

UK / ɪkˈsplen /

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

day

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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

unevenness

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US / ʌnˈiːvənəs /

UK / əˈnivənəs /

B1
  • noun
  • The quality of not being smooth, level, or regular

vibrate

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US / vaɪˈbreɪt /

UK / ˈvaɪˌbret /

B2
  • verb
  • To shake side to side quickly in small movements

cope

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US / kəʊp /

UK / koʊp /

A2
  • verb
  • To deal with something in spite of difficulties

reason

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US / 'ri:zn /

UK / ˈrizən /

A1
  • noun
  • Ability to think about facts and form a judgment
  • Explanation for why something occurred or was done
  • verb
  • To think and make conclusions in a logical manner

consider

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US / kən'sɪdə(r) /

UK / kənˈsɪdər /

A1
  • verb
  • To think carefully about something

pot

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US / pɒt /

UK / pɑt /

A2
  • noun
  • Container designed to hold or store something
  • Deep, round container that is used for cooking
  • Large, significant quantity of something
  • Slang name for marijuana
  • Net pocket at the corners, etc. of a snooker table
  • Money that can be won in a card game or a bet
  • verb
  • To plant something in a container filled with soil
  • To hit a ball into a table pocket in snooker

someone

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US / ˈsʌmwʌn /

UK / ˈsʌmˌwʌn, -wən /

A1
  • pronoun
  • Person who is not known or named

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

weird

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US / wɪəd /

UK / wɪrd /

B1
  • adjecitve
  • Odd or unusual; surprising; strange

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

new

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US / nju: /

UK / nu, nju /

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

quick

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US / kwɪk /

UK / kwɪk /

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

small

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US / smɔ:l /

UK / smɔl /

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

try

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US / traɪ /

UK / traɪ /

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

away

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US / ə'weɪ /

UK / əˈwe /

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

calculate

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US / 'kælkjʊleɪt /

UK / ˈkælkjəˌlet /

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

month

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US / mʌnθ /

UK / mʌnθ /

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

art

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US / ɑ:t /

UK / ɑrt /

A1
  • noun
  • Creative skill using the imagination e.g. painting
  • A skill or talent you have

car

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US / kɑ:(r) /

UK / kɑr /

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

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

onto

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US / ˈɒntə /

UK / ˈɑnˌtu, -tə, ˈɔn- /

A1
  • preposition
  • Towards a certain direction/into a certain area

relatively

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US / ˈrelətɪvli /

UK / ˈrɛlətɪvlɪ /

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

see

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US / si: /

UK / si /

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

kitchen

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US / ˈkɪtʃɪn /

UK / ˈkɪtʃən /

A2
  • noun
  • Place where food is cooked

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

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

count

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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

exist

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US / ɪɡ'zɪst /

UK / ɪɡˈzɪst /

A1
  • verb
  • To be present, alive or real

end

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US / end /

UK / ɛnd /

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

engineer

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US / ˌendʒɪ'nɪə(r) /

UK / ˌɛndʒəˈnɪr /

A2
  • noun
  • Someone whose job is designing machines, buildings
  • Someone whose job is to repair or maintain engines

gear

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US / ɡɪə(r) /

UK / ɡɪr /

B1
  • noun
  • A speed selector connected to an engine
  • Special clothes you use for a purpose
  • Toothed wheel shifting power from engine to wheels
  • verb
  • To aim at or prepare yourself for something

remember

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US / rɪ'membə(r) /

UK / rɪˈmɛmbɚ /

A1
  • verb
  • To give someone a gift, e.g. birthday, wedding
  • To hold a thought in your mind to not forget it
  • To bring a previous image or idea to your mind

straightaway

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US / ˌstreɪtəˈweɪ /

UK / ˈstretəˌwe /

C1
  • adverb
  • (Done) with little or no delay
  • noun
  • A straight road (often for racing)

preview

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US / 'pri:vju: /

UK / ˈpriˌvju /

B2
  • noun
  • Showing of a movie before public release
  • verb
  • To look ahead at something, e.g. a movie

process

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US / prə'ses /

UK / ˈprɑsˌɛs, ˈproˌsɛs /

A2
  • noun
  • Dealing with official forms in the way required
  • Set of changes that occur slowly and naturally
  • verb
  • To organize and use data in a computer
  • To deal with official forms in the way required
  • To prepare by treating something in a certain way
  • To adopt a set of actions that produce a result
  • To convert by putting something through a machine

sponsor

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US / ˈspɒnsə(r) /

UK / ˈspɑ:nsə(r) /

B1
  • noun
  • Person that supports the passage of a new law
  • Person giving money for someone's education
  • verb
  • To support the passage of a new law
  • To help someone succeed by giving them money
  • To pay for an event, usually as an advertisement

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

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

fashion

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US / 'fæʃn /

UK / ˈfæʃən /

A2
  • noun
  • Style of dress or activity popular at some time
  • Industry that creates new styles of clothes
  • Way of behaving; manner
  • Trend that is popular at a given time
  • Way of doing something; manner
  • verb
  • To make things into a particular shape

hear

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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

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

full

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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

behind

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US / bɪˈhaɪnd /

UK / bɪˈhaɪnd /

A1
  • adjecitve
  • Concerning a later or slower time than expected
  • Being in a losing position in a sporting event
  • Being in the past; old fashioned
  • adverb
  • Remaining
  • noun
  • The part of the body that one sits on
  • preposition
  • At or toward the back of someone or something
  • Supporting or helping someone

boost

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US / bu:st /

UK / bust /

B1
  • noun
  • An increase in something
  • verb
  • To increase something; to make something better
  • To push someone or something up from beneath them

complete

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US / kəm'pli:t /

UK / kəmˈplit /

A1
  • adjecitve
  • Being finished; done; achieved
  • Being as perfect and as total as could be
  • verb
  • To finish or reach the end of doing something

could

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US / kəd /

UK / kʊd /

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

checkout

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US / ˈtʃekaʊt /

UK / ˈtʃɛkˌaʊt /

C2
  • noun
  • Counter in a supermarket where you pay for goods

often

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US / ˈɔfən /

UK / ˈɔfən,ˈɑfən,ˈɔftən,ˈɑf- /

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

trust

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US / trʌst /

UK / trʌst /

A2
  • noun
  • Wealth or property held by one person for another
  • The belief that someone is honest
  • Care or responsibility of a person
  • verb
  • To expect confidently
  • To have confidence or faith
  • To be confident someone is honest and reliable
  • To believe someone to be honest and reliable

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

almost

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US / 'ɔ:lməʊst /

UK / ˈɔlˌmost, ɔlˈmost /

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

extra

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US / 'ekstrə /

UK / 'ekstrə /

A2
  • adjecitve
  • More than necessary; additional
  • noun
  • Items more than you need; additional items
  • Person who has a small part in a movie
  • Special version of a newspaper

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

unwanted

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US / ˌʌnˈwɒntɪd /

UK / ʌnˋwɑntɪd /

B1
  • adjecitve
  • Not desired

six

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US / sɪks /

UK / sɪks /

A1
  • number
  • 6

amount

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US / ə'maʊnt /

UK / əˈmaʊnt /

A1
  • noun
  • Quantity of something
  • verb
  • To add up to a certain figure

benefit

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US / 'benɪfɪt /

UK / ˈbɛnəfɪt /

A2
  • noun
  • Good result or effect, something advantageous
  • verb
  • To have a good effect or be helpful

head

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US / hed /

UK / hɛd /

A1
  • noun
  • Counter for the number of cattle
  • Natural mental ability or intelligence
  • Leader or person with the greatest authority
  • Mind; mental ability; mental state
  • Side of a coin with a head on it
  • Top part of your body with eyes and a mouth
  • Starting point of something, e.g. a river
  • verb
  • To hit a ball with your head in a game
  • To be first or at the front or top (e.g. a list)
  • To travel or move toward a particular place; To go in a particular direction
  • To become the leader of something
  • To lead or be responsible for something

middle

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US / 'mɪdl /

UK / ˈmidl /

A1
  • adjecitve
  • Equal distance from extremes
  • noun
  • Place that is halfway between two things

never

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US / 'nevə(r) /

UK / ˈnɛvɚ /

A1
  • adverb
  • Not ever; not at any time

personal

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US / ˈpɜ:sənl /

UK / ˈpɚsənəl /

A2
  • adjecitve
  • Done by or to a particular person; individual
  • Concerning a person's private life or feelings

turbocharger

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US / ˈtɜːbəʊtʃɑːdʒə(r) /

UK / ˈtɜːrboʊtʃɑːrdʒər /

C1
  • noun
  • Device that increases the power of an engine

depend

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US / dɪˈpend /

UK / dɪˈpend /

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

equation

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US / ɪˈkweɪʒn /

UK / ɪˈkweʒən, -ʃən /

B1
  • noun
  • Mathematical statement showing things to be equal
  • Complex set of different facts, ideas or issues

situation

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US / ˌsɪtʃuˈeɪʃn /

UK / ˌsɪtʃuˈeʃən /

A1
  • noun
  • Place, position or area that something is in
  • Circumstance or condition surrounding an event
  • An unexpected problem or difficulty

thumb

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US / θʌm /

UK / θʌm /

B1
  • noun
  • Part of a glove that goes over the thumb
  • The short, thick finger on the side of your hand
  • verb
  • To use your thumb to request a ride in a car
  • To casually look through a book, magazine etc.

counteract

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US / ˌkaʊntərˈækt /

UK / ˌkaʊntɚˈækt /

C1
  • verb
  • To reduce the impact doing something opposite

for

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US / fə(r) /

UK / fɔr,fə /

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

time

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US / taɪm /

UK / taɪm /

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

through

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US / θru: /

UK / θru /

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

why

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US / waɪ /

UK / hwaɪ, waɪ /

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

vibe

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US / vaɪb /

UK / vaɪb /

C1
  • noun
  • Distinct emotional aura experienced instinctively

worth

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US / wɜ:θ /

UK / wɚθ /

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

acceleration

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US / əkˌseləˈreɪʃn /

UK / ækˌsɛləˈreʃən /

B1
  • noun
  • Increase in the speed or rate of something

face

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US / feɪs /

UK / fes /

A1
  • noun
  • Side or outer surface of something
  • An expression using mouth, nose, eyes etc.
  • Front part of the head where eyes, mouth etc. are
  • Characteristics you show in public
  • verb
  • To cover a surface with something like paint
  • To deal with a problem or responsibilities
  • To look toward; point in a certain direction

math

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US / mæθ /

UK / mæθ /

A2
  • noun
  • Study or science of numbers and shapes

myself

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US / maɪˈself /

UK / maɪˈsɛlf /

A1
  • pronoun
  • The same person who did the action mentioned
  • My regular, usual, or healthy self

stuff

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US / stʌf /

UK / stʌf /

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

redo

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US / ˌri:'du: /

UK / riˈdu /

B1
  • verb
  • To do over again

those

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US / ðəʊz /

UK / ðoz /

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

weekender

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US / ˌwi:kˈendə(r) /

UK / ˈwikˌɛndɚ /

A1
  • other
  • A small suitcase to carry clothing and accessories for a weekend trip
  • Someone who vacations on a weekend

awesome

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US / 'ɔ:səm /

UK / ˈɔsəm /

B2
  • adjecitve
  • Great; wonderful; stupendous

few

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US / fju: /

UK / fju /

A1
  • pronoun
  • Not many, a small number

fact

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US / fækt /

UK / fækt /

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

industrial

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US / ɪnˈdʌstriəl /

UK / ɪnˈdʌstriəl /

A2
  • adjecitve
  • Concerning making things in factories

mike

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US / maɪk /

UK / maɪk /

A1
  • intransitive verb
  • Idle away one's time.
  • noun
  • A microphone.
  • A period of idleness.
  • A code word representing the letter M, used in radio communication.
  • transitive verb
  • Place a microphone close to (someone or something) or in (a place)

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

oil

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US / ɔɪl /

UK / ɔɪl /

A2
  • noun
  • A liquid used for frying foods
  • Thick, black liquid in the ground used as fuel
  • verb
  • To add a liquid for frying foods
  • To put liquid in a machine so it will run smoothly

reliable

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US / rɪˈlaɪəbl /

UK / rɪˈlaɪəbəl /

A2
  • adjecitve
  • Being likely to be true; believable
  • Deserving of your trust; dependable

under

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US / ˈʌndə(r) /

UK / ˈʌndɚ /

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

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

eight

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US / eɪt /

UK / et /

A1
  • number
  • 8

charge

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US / tʃɑ:dʒ /

UK / tʃɑrdʒ /

A2
  • noun
  • An attack by running quickly toward someone
  • A price for a service or goods
  • When a battery has a certain amount of electricity
  • Amount of money you pay for a service
  • verb
  • To run quickly toward someone to attack them
  • To ask for money as a price for a service or goods
  • To put electricity in a battery
  • To give responsibility to take care of or manage
  • To state that someone has committed a crime

per

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US / pə(r) /

UK / pɚ /

A2
  • preposition
  • In the manner directed or suggested
  • For each; during each

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

subject

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US / 'sʌbdʒɪkt /

UK / ˈsʌbdʒekt /

A1
  • noun
  • Citizen of an area or country
  • The person or thing that does the action of a verb
  • People who take part in experiments or tests
  • An area of study at school, e.g. math, history
  • What a book, article etc. is about; theme
  • verb
  • To cause to suffer or experience something

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)

sevens

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US / ˈsɛvnz /

UK / ˈsɛvənz /

A1
  • number
  • 7s

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

cycle

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US / ˈsaɪkl /

UK / ˈsaɪkəl /

A2
  • noun
  • Series of regular and repeated actions
  • Bicycle, bike
  • verb
  • To go through a series of events repeatedly
  • To ride on a bicycle

home

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US / həʊm /

UK / hom /

A1
  • adjecitve
  • A sports team's own field or place of play
  • adverb
  • Into the correct or intended position
  • noun
  • House, apartment or building to be rented or sold
  • Institution for sick or elderly people
  • Place where a person or a family lives
  • Country where a person lives or was born
  • Region that is native to peoples, plant or animals
  • verb
  • To move towards a particular target location

load

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US / ləʊd /

UK / lod /

A2
  • noun
  • Large, often heavy, amount of a thing to be moved
  • A burden; heavy responsibility
  • Many or much of something; a lot of
  • Items that fill a truck, machine
  • verb
  • To put in items for use (e.g. bullets in a gun)

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)

talk

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US / tɔ:k /

UK / tɔk /

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

stroke

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US / strəʊk /

UK / strok /

B1
  • noun
  • When blood cannot get to brain, causing damage
  • Mark made by a pen, pencil or brush
  • One movement of oars on a boat
  • verb
  • To rub your hand in a caring way on something

bulk

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US / bʌlk /

UK / bʌlk /

B1
  • noun
  • Most of something; majority of
  • Big size; largeness; heaviness

beautifully

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US / ˈbju:tɪfli /

UK / ˈbjutəfəlɪ /

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

bespoke

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US / biˈspəuk /

UK / bɪˈspoʊk /

C1
  • adjecitve
  • Custom-made

fraction

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US / ˈfrækʃn /

UK / ˈfrækʃən /

B1
  • noun
  • Small part of something

die

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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

piece

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US / pi:s /

UK / pis /

A1
  • noun
  • A counter in a board game
  • Small part of something larger
  • verb
  • To put items together to assemble something

opener

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US / ˈəʊpnə(r) /

UK / ˈopənɚ /

A2
  • noun
  • Device for opening things e.g. a bottle
  • First event in a series

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

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

within

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US / wɪˈðɪn /

UK / wɪðˈɪn, wɪθ- /

A1
  • adverb
  • Inside the limits of an area, time or range
  • preposition
  • From the inside of something
  • Subtitles section
  • We have single-cylinder engines, twins, triples, four pots, inline fives, straight sixes, but then we start to skip some numbers up to V8s, V10s, V12s, even all the way up to V and W16s.
  • You've probably never thought about this before, but now that you've clicked this video, let's talk about it.
  • Why is there no such thing as a seven-cylinder engine?
  • Well, engines with seven cylinders do technically exist, just not in cars.
  • You can get inline sevens in big industrial applications and in radial aircraft engines.
  • We'll get to those later, but there has never been a seven-cylinder engine in a car.
  • The main reason is engine balancing.
  • There is a lot going on in an internal combustion engine.
  • You've got pistons being fired up and down cylinders.
  • That power is then translated through the conrod down to a rotating crankshaft.
  • All of that is due to a mixture of fuel and air.
  • Then you've got oil and water coursing all the way through it to keep it cool and stop it seizing.
  • With all of that movement within an engine, it's going to create a lot of unwanted vibration.
  • Considering an engine rotates at thousands of times per minute, you want to counteract that vibration as much as possible.
  • Otherwise, your engine is literally going to shake itself to pieces.
  • That process is called engine balancing.
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  • Now, some engines need less balancing or none at all compared to others, depending on their cylinder count and layout.
  • A straight six is famously balanced, and although there's more maths to it, you can effectively see why it's balanced with the two outside cylinders moving together, then the two in from that, then the inner two.
  • Straightaway, you can see why a straight six is smooth and balanced.
  • If we pick a less uniform engine layout, let's say a three-cylinder engine like a Yuki, things aren't as simple.
  • You've got an odd number of pistons firing at specific times that naturally leads to an imbalance.
  • Triples generally need a balancing shaft that runs alongside the crankshaft to completely counteract that lack of balance, and I remember a whole module at university where you learn to calculate the amount of primary and secondary force that needs cancelled out.
  • Aside from a full balancing shaft, you can also counterweight the crankshaft itself to even things out.
  • In fact, if we let you hear Yuki now, you can hear the imbalance going on.
  • The firing order and the vibrations that come from the engine layout leads to the classic thrum of a three-cylinder engine.
  • Some turbo chuff doesn't hurt either.
  • That sound comes from the fact that there are gaps between each cylinder firing.
  • Let's do some quick maths.
  • By using this equation, you can find out the firing interval of an engine.
  • We have four strokes, a stroke takes 180 degrees, and our cylinder count is three in this situation.
  • Plug those numbers in, and we find out that a three-cylinder fires for every 240 degrees of crankshaft rotation.
  • To calculate the overlap in those cylinders firing, you take that 180 degrees and subtract the firing interval.
  • That produces minus 60 degrees in a three-cylinder.
  • That means there is no overlap.
  • There is actually 60 degrees of silence within a three-cylinder's four-stroke cycle where there's nothing firing.
  • That creates the natural unevenness of a three-cylinder engine because you can imagine that crankshaft being jolted by the first cylinder firing, but then it spins for a relatively long amount of time not under power before the next cylinder fires and on and on.
  • You can imagine that crankshaft jolting around compared to other engines.
  • Now, you may think that a higher odd number of cylinders might make things worse, say an inline five, but it's actually the opposite.
  • A five-cylinder engine is much smoother than a three-cylinder engine.
  • You can see that through the maths for a five-cylinder engine.
  • If you plug in those numbers, we see that the firing interval is 144 degrees and it has an overlap of 36 degrees.
  • By having more cylinders, the crankshaft encounters more explosions that essentially merge together and overlap, making for a smoother engine.
  • The more cylinders you have firing over that 720-degree four-stroke cycle, the smoother running the engine is, thanks to less of an imbalance, with each cylinder helping to cancel out forces from other cylinders.
  • That's why a single-cylinder engine is the shakiest thing you can have and needs a massive counterweight.
  • A three-cylinder still vibrates a lot, but to far less an extent.
  • A five-cylinder is getting pretty smooth.
  • A six is even better thanks to that extra cylinder, as well as being symmetrical and on and on.
  • I've sat and tried to resurrect my university degree to figure out the maths for the subject of today's video, an inline seven.
  • I started with the crank spacing.
  • You divide 360 by seven and you get 51.4 degrees.
  • That's by far the weirdest number I've seen associated with crank spacing.
  • That means if you were to look down the end of a crankshaft, the crank journals that the conrods attach to would be at intervals of 51.4 degrees.
  • The firing interval then comes out at 102.86 degrees, again, an incredibly weird number, and the overlap is roughly 77 degrees, so more than a five-cylinder.
  • The firing order would come out at 1357246.
  • Although it would share the natural imbalance of a three and a five-cylinder, it would want to rock from end to end.
  • Those unwanted vibrations would be lessened thanks to having more cylinders.
  • What's really cool and random is that someone on the internet has simulated what an inline seven engine would sound like.
  • This one even has a turbo thrown in.
  • Get a load of this.
  • An inline seven then wouldn't be a complete disaster.
  • It wouldn't be shaking itself to pieces, but engineers over the years would look at this engine layout and think, why?
  • A seven-cylinder would be one cylinder more than the mighty, beautifully balanced straight six.
  • The art of adding more cylinders to create more power comes from a time before forced induction was really invented.
  • If you wanted to increase the power of an engine, you had to add displacement.
  • With the invention of the supercharger and turbocharger, the days started to dwindle of big high-cylinder count engines because if you then wanted to increase power, you simply turned up the boost.
  • When designing an engine, it's best practice really to stick to even numbers because if something's happening on one end of the engine, there's probably going to be something happening on the other end of the engine to help balance things out.
  • Like this straight six, while these two pistons are up, these two pistons are down.
  • When there's something happening on one end of the engine, there's something happening in the middle that's canceling things out.
  • With V engines, with your two banks in general, if there's something happening on one bank, there's going to be something happening on the other bank that's going to help cancel things out.
  • The second you add a cylinder, for example, to the straight six and make it a straight seven, you're mucking up that balance.
  • You would have to re-engineer the entire thing to cope with that seventh cylinder.
  • Really, it's just needless overcomplication.
  • In general, keep it even.
  • Another problem that engineers would face would be the length of the crankshaft.
  • Most crankshafts don't go any longer than six cylinders because when engines have more cylinders than six, generally, they turn into Vs, so V8s, V10s, and V12s.
  • That's because the longer you make your crankshaft, the more susceptible it is to torsional vibrations.
  • It's going to want to bend and twist.
  • To stop that happening, you have to make it stiffer.
  • In doing so, you're probably going to make it heavier.
  • That means it's not going to want to rotate as easily.
  • By adding a cylinder to this straight six crankshaft, not only are you going to need to redo all the balancing, you're also going to have to bulk up the crankshaft.
  • This is the crank from this straight six and trust me, it's bulky enough.
  • Let's not forget the mighty straight eight engine.
  • One of those things powered the early Alfa Romeo F1 cars to numerous wins and was the solution to create more power than a straight six and also being generally more reliable by distributing the power over more cylinders.
  • That crankshaft would be even longer, but it's not that simple.
  • An inline eight has the benefit of being essentially two inline four cylinders connected together, so it's naturally balanced by them working in tandem.
  • An inline seven would have almost just as long a crankshaft, but with more imbalance, therefore adding unnecessary engineering complexity.
  • Packaging is another thing.
  • A straight six is long enough, but for the reason that the straight eight died out, if you were to add a cylinder to this and make it an inline seven, you would need more room in the engine bay, your weight distribution would probably be all off,
  • And you can also find other engine layouts that make more power in a much smoother fashion.
  • Essentially, there are zero reasons for a seven-cylinder engine to exist in a road car.
  • If you want the best, easiest, smoothest inline engine for your car, pick a straight six, especially one with a massive supercharger attached.
  • That's quite nice.
  • As I said earlier in the video, seven-cylinder engines do exist, just not in cars.
  • There have been a few over the years, and the most recent one I could find is a Sisu diesel engine created by a company called ACGO for their combine harvesters.
  • That manufacturer creates modular engines with each cylinder being 1.4 liters, and they each have their own cylinder head.
  • That means they can just multiply up to create power because their engines are naturally aspirated.
  • The engineers behind this 9.8-liter inline seven described the process of creating the crankshaft as simply putting their four-cylinder crank onto their three-cylinder crack.
  • The seven-cylinder creates 80 horsepower more than the straight six.
  • There you go.
  • That's the proof of the concept.
  • A seven-cylinder engine can work.
  • Straight sevens can also be found in submarines and ships.
  • What helps these industrial engines is that they're mostly operating at a single RPM.
  • That means the engineers can develop the engine based on that one engine speed and not have to worry about much else.
  • That wouldn't be possible in a car that is doing far more acceleration and needs to be more versatile than something like a combine harvester.
  • Then we have radial engines that you can find in aircraft which often use odd number layouts like five, seven, nine, and even 11 cylinders, seeing as they're all working away and then towards each other on the same axial plane.
  • You can have one big counterweight rotating around, keeping it balanced.
  • There you go.
  • Seven-cylinder engines, they have their uses, just not in cars.
  • If you like this video, give it a thumbs up.
  • I've been Mike, and don't forget to subscribe to Drivetribe.