negligee vs housecoat

negligee and housecoat both are nouns.

Word	Noun	Adjective	Verb	Adverb
negligee	Yes	No	No	No
housecoat	Yes	No	No	No

As nouns, negligee and housecoat are synonyms defined as:

Other synonyms of negligee include neglige, peignoir, wrapper.

negligee (noun)	housecoat (noun)
a loose dressing gown for women	a loose dressing gown for women