let (someone) in on (something)

idiom

Definition of let (someone) in on (something)

: to allow (someone) to know (a secret) He said he'd let me in on a secret if I promised not to tell anyone else.

Learn More About let (someone) in on (something)

Dictionary Entries Near let (someone) in on (something)

let someone in on a (little) secret

let (someone) in on (something)

let someone know

See More Nearby Entries 

Statistics for let (someone) in on (something)

Cite this Entry

“Let (someone) in on (something).” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/let%20%28someone%29%20in%20on%20%28something%29. Accessed 30 Jul. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!