English

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Alternative forms

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Etymology

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In allusion to the rapidity of flashes of lightning.

Pronunciation

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Adjective

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quick as a flash (not comparable)

  1. (idiomatic, simile) Extremely quick.
    Synonyms: fulgurant, fast as lightning, lightning fast, lightning-quick, in a flash

Adverb

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quick as a flash (not comparable)

  1. (idiomatic, simile) Extremely quickly.
    Synonyms: lightning fast, in a flash, lightningly

Translations

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