woman's clothing vs bra

woman's clothing and bra both are nouns.

Word	Noun	Adjective	Verb	Adverb
woman's clothing	Yes	No	No	No
bra	Yes	No	No	No

As nouns, bra is a hyponym of woman's clothing; that is, bra is a word with a more specific, narrower meaning than woman's clothing:

Other hyponyms of woman's clothing include A-line, bandeau, brassiere, dress, frock, G-string, thong, housecoat, neglige, negligee, peignoir, wrapper, top.

woman's clothing (noun)	bra (noun)
clothing that is designed for women to wear	an undergarment worn by women to support their breasts