collaborator vs collaborate

collaborator is a noun but collaborate is not a noun.

Word	Noun	Adjective	Verb	Adverb
collaborator	Yes	No	No	No
collaborate	No	No	Yes	No

collaborator (noun)	collaborate (noun)
an associate in an activity or endeavor or sphere of common interest
someone who collaborates with an enemy occupying force
someone who assists in a plot

collaborator (verb)	collaborate (verb)
	work together on a common enterprise or project
	cooperate as a traitor