Idiom: all at once
all at once:
- happening suddenly or abruptly
- happening together at the same time
- 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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> idiom: all at once