let in on

verb

To disclose or tell (a secret) to (someone); to share (privileged information) with (someone); to inform (someone) of (a secret). See Usage notes below.

“If this is a joke, please let me in on it.”

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Meanings

verblet in on (third-person singular simple present lets in on, present participle letting in on, simple past and past participle let in on)

present singular third person lets in on · participle present letting in on

  1. ditransitiveTo disclose or tell (a secret) to (someone); to share (privileged information) with (someone); to inform (someone) of (a secret). See Usage notes below.

    If this is a joke, please let me in on it.

    1 more example

    Do you think we should let him in on the shortcut?

Synonyms & antonyms

Also see
attendattend toconsiderheedpasspay attentionregardrespect

Translations

French faire savoir
  • faire savoirtell (a secret) to
Hungarian beavat
  • beavattell (a secret) to
Polish wtajemniczać, wtajemniczyć
  • wtajemniczaćtell (a secret) to
  • wtajemniczyćtell (a secret) to
Cite this entry
APA

let in on. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/let%20in%20on

MLA

“let in on.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/let%20in%20on. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “let in on,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/let%20in%20on.

Source: let in on on Wiktionary, CC BY-SA 4.0.