let someone know

idiom

Definition of let someone know

: to tell something to someone Let me know if you're going to the party. Please let me know if there's anything I can do to help.

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Dictionary Entries near let someone know

let (someone) have it

let someone in on a (little) secret

let (someone) in on (something)

let someone know

let (someone) off the hook

let (someone or something) be

let (something) rest

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