confrere vs colleague

confrere and colleague both are nouns.

Word	Noun	Adjective	Verb	Adverb
confrere	Yes	No	No	No
colleague	Yes	No	No	No

As nouns, confrere and colleague are synonyms defined as:

confrere and colleague: a person who is member of one's class or profession

Other synonyms of confrere include fellow.

confrere (noun)	colleague (noun)
a person who is member of one's class or profession	an associate that one works with
	a person who is member of one's class or profession