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English definition of “look out”

look out

phrasal verb with look     /lʊk/ verb
to watch what is happening and be careful : The police have warned shopkeepers to look out for forged notes .Paying attention and being carefulCautious and vigilant B1 said or shouted in order to tell someone that they are in danger : Look out! There's a car coming!Threats and warnings
(Definition of look out from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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