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Pronunciation edit

  • (US) IPA(key): /ˌɔl əv ə ˈsʌdən/
  • (file)

Adverb edit

all of a sudden (not comparable)

  1. (set phrase, colloquial) Suddenly, quickly, without warning.
    Synonyms: all at once, at one stroke, in one fell swoop, just like that, out of the blue
    All of a sudden I felt very hot and tired.
    • 2016 December 19, Moe! Ninja Girls, Japan: NTT Solmare, iOS, Android, scene: Season 3, Chapter 3:
      ― Enju: “Wh-What?! What are you saying all of a sudden?! Idiot! Hentai!”

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