in the know


Privy to special or secret information, as in Not too many people are in the know about this project. [Late 1800s]

Words Nearby in the know

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

How to use in the know in a sentence