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all at once

English

  1. 🔊 without warning
    “all at once, he started shouting”
  2. 🔊 all at the same time
    “Let's say `Yes!' all at once”

Similar words

all of a sudden all together abruptly all together at a blow at a stroke at once at one blow at one jump at one stroke at one swoop at one time bang collectively communally conjointly corporately dash en masse ensemble forthwith hastily impetuously impulsively