living-room vs front room

living-room and front room both are nouns.

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

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

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

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

living-room (noun)	front room (noun)
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