sitting room vs front room

sitting room and front room both are nouns.

Word	Noun	Adjective	Verb	Adverb
sitting room	Yes	No	No	No
front room	Yes	No	No	No

As nouns, sitting room and front room are synonyms defined as:

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

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

sitting 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