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English definition of “lost”

lost

adjective (CONFUSED)    /lɒst/ US  /lɑːst/
C1 not confident and not knowing what to do in a particular situation: It was his first day in the office and he seemed a bit lost.Paying attention and being carefulCautious and vigilant
(Definition of lost adjective (CONFUSED) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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