collaborator vs quisling

collaborator and quisling both are nouns.

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

As nouns, collaborator and quisling are synonyms defined as:

collaborator and quisling: someone who collaborates with an enemy occupying force

Other synonyms of collaborator include collaborationist.

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