Meaning of “in a flash” in the English Dictionary

british dictionary

"in a flash" in British English

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in a flash

also quick as a flash informal

C2 quickly or suddenly:

The ceremony was over in a flash.

(Definition of “in a flash” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"in a flash" in American English

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in a flash

suddenly:

The answer came to her in a flash.

(Definition of “in a flash” from the Cambridge Academic Content Dictionary © Cambridge University Press)

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