comfort woman vs tart

comfort woman and tart both are nouns.

Word	Noun	Adjective	Verb	Adverb
comfort woman	Yes	No	No	No
tart	Yes	Yes	No	No

As nouns, tart is a hypernym of comfort woman; that is, tart is a word with a broader meaning than comfort woman:

comfort woman: a woman forced into prostitution for Japanese servicemen during World War II
tart: a woman who engages in sexual intercourse for money

comfort woman (noun)	tart (noun)
a woman forced into prostitution for Japanese servicemen during World War II	a small open pie with a fruit filling
	a pastry cup with a filling of fruit or custard and no top crust
	a woman who engages in sexual intercourse for money

comfort woman (adjective)	tart (adjective)
	tasting sour like a lemon
	harsh