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English definition of “quick”

quick

adjective [-er/-est only]  /kwɪk/ us  
done, happening, or moving fast; lasting only a short time: She cast a quick glance in the mirror. You’re back already – that was quick! He made a quick profit. [+ to infinitive] John was quick to point out the error.
quick
adverb  /kwɪk/ us  
not standard We bought it quick, before someone else could.
quick
exclamation  /kwɪk/ us  
Quick! Close the door before the dog gets out!
quickly
adverb  /ˈkwɪk·li/ us  
Emergency workers were on the scene quickly.
quickness
noun [U]  /ˈkwɪk·nəs/ us  
She moves with quickness, balance, and grace.
(Definition of quick from the Cambridge Academic Content Dictionary © Cambridge University Press)
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“quick” in American English

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