Definition of look out in English:

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look out

[usually in imperative] Be vigilant and take notice: “Look out!” warned Billie, seeing a movement from the room beyond look out for the early warning signals
More example sentences
  • I just hope they will take notice of warning signs we have put up and look out for them on the roads.
  • ‘Look out! Look out!’ they cried to their fellow crew members.
  • ‘Look out!’ I yelled, diving toward Scott.
beware, watch out, be on (one's) guard, be alert, be wary, be vigilant, be careful, take care, be cautious, pay attention, take heed, keep one's eyes open/peeled, keep an eye out;
watch your step
See parent entry: look
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