fit vs agree

fit is a noun but agree is not a noun.

Word	Noun	Adjective	Verb	Adverb
fit	Yes	Yes	Yes	No
agree	No	No	Yes	No

As verbs, fit and agree are synonyms defined as:

fit and agree: be compatible, similar or consistent; coincide in their characteristics

Other synonyms of fit include check, correspond, gibe, jibe, match, tally.

As verbs, agree is a hyponym of fit; that is, agree is a word with a more specific, narrower meaning than fit:

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

fit (noun)	agree (noun)
a sudden flurry of activity (often for no obvious reason)
the manner in which something fits
a sudden uncontrollable attack
a display of bad temper

fit (adjective)	agree (adjective)
physically and mentally sound or healthy
meeting adequate standards for a purpose
(usually followed by `to' or `for') on the point of or strongly disposed

fit (verb)	agree (verb)
make correspond or harmonize	be in accord; be in agreement
make fit	consent or assent to a condition, or agree to do something
insert or adjust several objects or people	achieve harmony of opinion, feeling, or purpose
fill, satisfy or meet a want or need or condition or restriction	be agreeable or suitable
provide with (something) usually for a specific purpose	be compatible, similar or consistent; coincide in their characteristics
be the right size or shape; fit correctly or as desired	go together
conform to some shape or size	show grammatical agreement
be compatible, similar or consistent; coincide in their characteristics
be agreeable or acceptable to