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English definition of “let sb know”

let sb know

A2 to tell someone something: Let us know when you get there. Let me know if you need any help. Thank you for coming to the interview - we'll let you know (= tell you whether we are going to offer you a job) in the next week.
(Definition of let sb know from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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Translations of “let sb know”

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