living-room vs parlor

living-room and parlor both are nouns.

Word	Noun	Adjective	Verb	Adverb
living-room	Yes	No	No	No
parlor	Yes	No	No	No

As nouns, living-room and parlor are synonyms defined as:

living-room and parlor: a room in a private house or establishment where people can sit and talk and relax

Other synonyms of living-room include front room, living room, parlour, sitting room.

living-room (noun)	parlor (noun)
a room in a private house or establishment where people can sit and talk and relax	reception room in an inn or club where visitors can be received
	a room in a private house or establishment where people can sit and talk and relax