tart vs pie

tart and pie both are nouns.

Word	Noun	Adjective	Verb	Adverb
tart	Yes	Yes	No	No
pie	Yes	No	No	No

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

tart (noun)	pie (noun)
a small open pie with a fruit filling	dish baked in pastry-lined pan often with a pastry top
a pastry cup with a filling of fruit or custard and no top crust
a woman who engages in sexual intercourse for money

tart (adjective)	pie (adjective)
tasting sour like a lemon
harsh