Laxi Dictionary

American Dictionary

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Definition all at once in American English

all at once phrase

phrase
1

happening suddenly, usually when you are not expecting it

Example

All at once a terrific crash of thunder shook the whole house.

Synonyms and related words
suddenly at once straight away
2

at the same time

Example

There were too many things happening all at once and I couldn't take it all in.

Synonyms and related words
when while simultaneous
Definition all at once in American English