colleague vs confrere

colleague and confrere both are nouns.

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

As nouns, colleague and confrere are synonyms defined as:

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

Other synonyms of colleague include fellow.

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