From Longman Dictionary of Contemporary Englishasas1 /əz; strong æz/ ●●●S1W1 preposition, adverb1used when you are comparing two people, things, situations etcas ... asTom’s not as old as you, is he?an old woman with hair as white as snowSome of the doctors are paid almost twice as much as the nurses.We work as hard as any other team in England.Please let me know your decision as soon as possible (=as soon as you can).His last album sold half a million copies and we hope this one will be just as (=equally) popular.2used to say what job, duty, use, or appearance someone or something hasAs a parent, I feel that more should be done to protect our children.A flat stone was used as a table.Dad dressed up as Santa Claus.3used to say what someone thinks or says a person or thing isThe problem is regarded as serious.The result of last week’s election will be seen as a victory for the right-wing government.He’s described as being in his late teens, tall, and of slim build.4when someone was in a particular age groupAs a young man, Eliot had studied art in Paris.I’ll take you to all the places I loved as a girl. → such asat such(2), → as oneat one2(15)USAGE: As, like, as if/though• Use as in comparisons in the expression as ... as, with an adjective or adverb in between:Basketball is as popular as football here.He can’t sing as well as his brother.• As is also used after be the same (age/size etc):He is the same age as me.• Do not use as on its own before a noun or pronoun in comparisons. Use like:A movie is not like a book.Like other people, he values his privacy. ✗ Don't say: A movie is not as a book. | As other people, he values his privacy.• Use as if/as though before a clause describing an imaginary situation:He talked to them as if they were children.• Some people also use like in this way, although this is often considered to be incorrect: They act like they own the place.• Do not use as if/as though directly before a noun. You say:You treat him as if he were your servant. ✗ Don't say: You treat him as if your servant.
Examples from the Corpus
as• Paul McGann will staras a middle-classJewishlawyer in a new BBC drama called 'Fish'.• Clint Eastwood was excellentas the strong, silenthero in his many westerns.just as• Mukhamedov's defection two years ago, just asCommunism was falling apart, will not be forgiven in a hurry.• He has a record to defend, just asDole does.• New applications and new accountsrosejust as dramatically.• Pastor Braun started whistling again, just as firmly.• The phonerangjust as I was leaving.• And, just as important, how is your partner feeling?• The shapes of the flowers are just asintriguing.• She was glad when Westerfield churchhove into view and sensed that he was just asrelieved.• I thought I might just as well come down to the point.• You can uses cherries instead of plums - they work just as well.asas2 ●●●S1W1 conjunction1COMPAREused in comparisonsas ... asThey want peace as much as we do.Helen comes to visit me as often as she can.I can’t run as fast as I used to.2XXin the way that someone says or that something happens, or in the condition something is inDo as I say!We’d better leave things as they are until the police arrive.The money was repaid, as promised.He did not need to keep moving house, as his father had.Roberta was late as usual (=in the way that she usually was).3used to say that what you are saying is already known or has been stated beforeDavid, as you know, has not been well lately.As I explained on the phone, your request will be considered at the next meeting.As Napoleon once said, attack is the best method of defence.4DURINGWHENwhile or whenI saw Peter as I was getting off the bus.As time passed, things seemed to get worse.Just as the two men were leaving, a message arrived.5BECAUSEused to state why a particular situation exists or why someone does somethingAs it was getting late, I turned around to start for home.We asked Philip to come with us, as he knew the road.► see thesaurus at because6ALTHOUGHthoughUnlikely as it might seem, I’m tired too.Try as she might, Sue couldn’t get the door open.As popular as he is, the president hasn’t always managed to have his own way.7 →as for somebody/something8 →as yet9 →as if .../as though ...10 →it’s not as if11 →as it is12 →as from/of something13 →as against something14 →as to something15 →as it were16 →as is/was/does etc17 →as you do → not as suchat such(8), → as wellat well1(5), → as well asat well1(6), → might (just) as wellat might1(9), → so as to do somethingat so2(3)