living room suite vs livingroom set

living room suite and livingroom set both are nouns.

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

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

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

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

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