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Meaning of word all at once from English dictionary with examples, synonyms and antonyms.

all at once   adverb

Meaning : All at the same time.

Example : Let's say `Yes!' all at once.

Synonyms : all together

Meaning : Without warning.

Example : All at once, he started shouting.

Synonyms : all of a sudden

All at once meaning in Bengali (Bangla).