livingroom set vs living-room set

livingroom set and living-room set both are nouns.

Word	Noun	Adjective	Verb	Adverb
livingroom set	Yes	No	No	No
living-room set	Yes	No	No	No

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

livingroom set and living-room set: a suite of furniture for the living room

Other synonyms of livingroom set include living-room suite, living room set, living room suite, livingroom suite.

livingroom set (noun)	living-room set (noun)
a suite of furniture for the living room	a suite of furniture for the living room