Words nearby fit in
Idioms and Phrases with fit in
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]
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.