let know

English

Verb

let know (third-person singular simple present lets know, present participle letting know, simple past and past participle let know)

  1. (ditransitive) To inform (someone) (of something).
    I sent an email to let John know what we found.
    Let me know when you are arriving.
    "I'm not sure which flight I'll be taking." / "Well, as soon as you find out, let me know."
    If anyone has seen him, let us know of his whereabouts.
    • 2026 February 4, Gareth Williams speaks to David Stubbings, “The RAIL Interview”, in RAIL, number 1054, page 32:
      On the day that decision was made, Virgin adverts appeared at St Pancras to let everyone (including its rival) know that things are going to change.

Usage notes

  • The second object may be omitted when it is understood in context.

Translations

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