parlor vs living room

parlor and living room both are nouns.

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

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

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

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

parlor (noun)	living room (noun)
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
a room in a private house or establishment where people can sit and talk and relax