Definition of “let sb down” - English Dictionary


“let sb down” in English

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let sb down

phrasal verb with let uk /let/ us /let/ verb present participle letting, past tense and past participle let

B2 to disappoint someone by failing to do what you agreed to do or were expected to do:

You will be there tomorrow - you won't let me down, will you?
When I was sent to prison, I really felt I had let my parents down.

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(Definition of “let sb down” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)