all of a sudden


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all of a sudden

Unexpectedly and abruptly; suddenly. I was startled when the fire alarm went off all of a sudden. I thought Laura and I were friends, but all of a sudden, she stopped talking to me.
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all of a sudden

suddenly. All of a sudden lightning struck the tree we were sitting under. I felt a sharp pain in my side all of a sudden.
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all of a sudden

Entirely without warning, abruptly, as in All of a sudden the lights went out. In Shakespeare's day the common phrase was of a sudden, the word all being added in the late 1600s. Also see all at once, def. 2.
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all of a sudden

COMMON If something happens all of a sudden, it happens quickly and unexpectedly. All of a sudden she didn't look sleepy any more. I felt incredibly lonely all of a sudden.
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ˌall of a ˈsudden

suddenly and unexpectedly: I was sitting reading my book when all of a sudden the lights went out.
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all of a sudden

Very quickly and unexpectedly; suddenly.
See also: all, of, sudden