in a flash

IPA/ɪn ɐ flˈaʃ/
IPA/ɪn ɐ flˈæʃ/

in a flash — idiom

1. in a very short time — so fast that it feels like a single moment rather than a

1.慣用語B1
釋義

in a very short time — so fast that it feels like a single moment rather than a process

例句

The cat darted across the street and disappeared in a flash.

adverbial phrase after verb

Nora said she would be back in a flash and was true to her word.

同義詞
  • instantly

    more formal and literal; a single adverb rather than a phrase

  • in a heartbeat

    emphasises willingness as much as speed; even more informal

  • in no time

    focuses on the task being finished quickly rather than an instantaneous change

反義詞
  • slowly

    opposite in terms of speed

  • gradually

    opposite in nature — happening bit by bit over a stretch of time

文法句型

[event] happens in a flash

in a flash, [clause]

用法筆記

Common in both spoken and casual written English. Can appear at the end of a clause (the usual position) or at the beginning for extra emphasis.

常見錯誤

❌I will do it in flash.
✅I will do it in a flash.
💡The indefinite article 'a' is required and never dropped.