associate vs fellow

associate and fellow both are nouns.

Word	Noun	Adjective	Verb	Adverb
associate	Yes	Yes	Yes	No
fellow	Yes	No	No	No

As nouns, fellow is a hyponym of associate; that is, fellow is a word with a more specific, narrower meaning than associate:

As nouns, associate and fellow are synonyms defined as:

associate and fellow: a friend who is frequently in the company of another

Other synonyms of associate include companion, comrade, familiar.

associate (noun)	fellow (noun)
a degree granted by a two-year college on successful completion of the undergraduates course of studies	a boy or man
any event that usually accompanies or is closely connected with another	a man who is the lover of a man or woman
a person who joins with others in some activity or endeavor	a friend who is frequently in the company of another
a friend who is frequently in the company of another	a person who is member of one's class or profession
a person with subordinate membership in a society, institution, or commercial enterprise	an informal form of address for a man
	a member of a learned society
	one of a pair

associate (adjective)	fellow (adjective)
having partial rights and privileges or subordinate status

associate (verb)	fellow (verb)
make a logical or causal connection
bring or come into association or action
keep company with; hang out with