Definition of all at once in English:

all at once

1Suddenly: all at once the noise stopped
More example sentences
  • The sounds struck her all at once, as if the volume on her ears had suddenly been turned up.
  • When he finally did put her words together, it hit him all at once like a ton of bricks.
  • Through it all, he is optimistic that he can succeed, not all at once, but over time.
2All at the same time: a lot of beans are ready all at once
More example sentences
  • Add the bean sprouts all at once and leave for 20 seconds, then add the spring onions, stir well, and drain.
  • Cost-wise, it makes sense to collect several updates together and release them all at once.
  • The dancers mix it up quite a bit, performing together all at once, as well as in trios, duos and solo pieces.
See parent entry: once

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obtain (information) by enlisting help of many people…