parlour vs living-room

parlour and living-room both are nouns.

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

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

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

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

parlour (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