Dictionary.com
definitions

fit in

verb

(tr) to give a place or time toif my schedule allows it, I'll fit you in
(intr, adverb) to belong or conform, esp after adjustmenthe didn't fit in with their plans

RELATED CONTENT

If You’re Trying To Fit In, You Need To Hear These Quotes
Conformity is overrated and these quotes will give you the confidence to stand out.
READ MORE
We Asked: The Weirdest Thing You Have Said To Fit In
Read more in this article about some frequently asked questions and fun facts related to our definitions.
READ MORE

RELATED WORDS

harmonize, conform, correspond, dovetail, accommodate, gratify, please, acknowledge, recognize, tolerate, take, respect, agree, satisfy, fit, serve, flatter, enhance, become, befit
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Idioms and Phrases with fit in

fit in

1

Also, fit into. Provide a place or time for. For example, We can't fit in another appointment—there's no time, or That tree won't fit into the hole you've dug. [Late 1600s]

2

fit in with. Be suited to, belong. For example, I just don't fit in with this group, or Her mood fitted in with the sad occasion.

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