beware - definition in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online (US)

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English definition of “beware”

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beware

verb [only in infinitive and imperative] uk   /bɪˈweər/  us   /-ˈwer/
C1 [I or T] used to warn someone to be very careful about something or someone: Beware salespeople who promise offers that seem too good to be true. You should beware of undercooked food when staying in hot countries. Beware of falling asleep while sunbathing. [I] used on signs to warn people of something dangerous: Beware of the dog. Beware - poisonous chemicals.
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(Definition of beware from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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