sex activity vs tart

sex activity and tart both are nouns.

Word	Noun	Adjective	Verb	Adverb
sex activity	Yes	No	No	No
tart	Yes	Yes	No	No

sex activity (noun)	tart (noun)
activities associated with sexual intercourse	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

sex activity (adjective)	tart (adjective)
	tasting sour like a lemon
	harsh