Meaning of the word "let on" in English

What does "let on" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

let on

US /lɛt ɑn/
UK /lɛt ɑn/
"let on" picture

Phrasal Verb

1.

to reveal a secret or information

Example:
Don't let on that you know about the surprise party.
She tried not to let on how upset she was.
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