fit in vs correspond

fit in and correspond both are verbs.

Word	Noun	Adjective	Verb	Adverb
fit in	No	No	Yes	No
correspond	No	No	Yes	No

As verbs, correspond is a hypernym of fit in; that is, correspond is a word with a broader meaning than fit in:

fit in: go together
correspond: be compatible, similar or consistent; coincide in their characteristics

Other hypernyms of fit in include agree, check, fit, gibe, jibe, match, tally.

fit in (verb)	correspond (verb)
go together	exchange messages
	be compatible, similar or consistent; coincide in their characteristics
	take the place of or be parallel or equivalent to
	be equivalent or parallel, in mathematics