Idiom:  all at once


all at once:  

  • happening suddenly or abruptly
  • happening together at the same time

Example sentences

  • It was really sunny when we started our walk but all at once the sky turned dark grey and it started raining really hard.
  • All at once he felt dizzy and a tightness in his chest and then he had a heart attack.
  • Something is wrong. All at once my husband has started to buy me flowers and gifts.
  • Okay, class don't everyone yell out the answer all at once.  Raise your hand and I'll call on you individually.
  • Don't add the vegetable broth all at once.  Add a little bit at a time and then let the rice simmer and slowly absorb the liquid before adding a little more.
  • My finances were great until several bad things happened all at once:  My computer died, my bike was stolen and I owe more taxes than I thought.
  • When Sarah walked through the door she was shocked when everyone yelled "Happy Birthday" all at once.
  • All at once the sofa caught on fire and we were barely able to leave the apartment in time.
  • Everything happened so fast and all at once so I can’t really remember much about it.


  • all of a sudden
  • in unison / in concert

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