warn Meaning in Cambridge Learner Dictionary
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Meaning of "warn" - Learner English Dictionary

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warn

verb [T]
 
 
/wɔːn/
OF DANGER B1 to tell someone that something bad may happen in the future, so that they can prevent it: [+ that] I warned you that it would be cold but you still wouldn't wear a coat. I've been warning him for months.Threats and warnings
ADVISE to advise someone not to do something that could cause danger or trouble: [+ to do sth] I warned you not to tell her.Threats and warnings
(Definition of warn from the Cambridge Learners Dictionary © Cambridge University Press)
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