haberdashery vs men's furnishings

haberdashery and men's furnishings both are nouns.

Word	Noun	Adjective	Verb	Adverb
haberdashery	Yes	No	No	No
men's furnishings	Yes	No	No	No

As nouns, haberdashery and men's furnishings are synonyms defined as:

haberdashery (noun)	men's furnishings (noun)
the drygoods sold by a haberdasher	the drygoods sold by a haberdasher
a store where men's clothes are sold