before you know it

Definition

› very soon: A week seems like a long time, but Saturday will be here before you know it.

(Definition of before you know it from the Cambridge Academic Content Dictionary © Cambridge University Press)

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British English

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befall verb
befit verb
before long idiom
before preposition (IN FRONT)
before preposition, conjunction, adverb (EARLIER)
before you know it idiom
beforehand adverb
befriend verb
befuddled adjective
beg off idiom
beg verb

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