Definition of quick adverb from the Oxford Advanced Learner's Dictionary

     

    quick

     adverb
    adverb
    BrE BrE//kwɪk//
     
    ; NAmE NAmE//kwɪk//
     
    (quicker, quickest)
     
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  1. 1quickly; fast Come as quick as you can! Let's see who can get there quickest. It's another of his schemes to get rich quick. Which Word?quick / quickly / fast Quickly is the usual adverb from quick:I quickly realized that I was on the wrong train. My heart started to beat more quickly. Quick is sometimes used as an adverb in very informal language, especially as an exclamation:Come on! Quick! They’ll see us!Quicker is used more often:My heart started to beat much quicker. The quicker I get you away from here, the better. Fast is more often used when you are talking about the speed that somebody or something moves at:How fast can a cheetah run? Can’t you drive any faster? You’re driving too quickly. There is no word fastly.
  2. 2quick- (in adjectives) doing the thing mentioned quickly quick-thinking quick-growing
  3. Word Origin Old English cwic, cwicu ‘alive, animated, alert’, of Germanic origin; related to Dutch kwiek ‘sprightly’ and German keck ‘saucy’, from an Indo-European root shared by Latin vivus ‘alive’ and Greek bios, zōē ‘life’.Idioms very quickly Quick as a flash she was at his side. More Like ThisSimiles in idioms (as) bald as a coot, (as) blind as a bat, (as) bright as a button, (as) bold as brass, as busy as a bee, as clean as a whistle, (as) dead as a/​the dodo, (as) deaf as a post, (as) dull as ditchwater, (as) fit as a fiddle, as flat as a pancake, (as) good as gold, (as) mad as a hatter/​a March hare, (as) miserable/​ugly as sin, as old as the hills, (as) pleased as Punch, as pretty as a picture, (as) regular as clockwork, (as) quick as a flash, (as) safe as houses, (as) sound as a bell, (as) steady as a rock, (as) thick as two short planks, (as) tough as old bootsSee worksheet.
See the Oxford Advanced American Dictionary entry: quick