tart vs quiche

tart and quiche both are nouns.

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

As nouns, quiche is a hyponym of tart; that is, quiche is a word with a more specific, narrower meaning than tart:

tart: a small open pie with a fruit filling
quiche: a tart filled with rich unsweetened custard; often contains other ingredients (as cheese or ham or seafood or vegetables)

Other hyponyms of tart include apple tart, lobster tart, tartlet.

tart (noun)	quiche (noun)
a small open pie with a fruit filling	a tart filled with rich unsweetened custard; often contains other ingredients (as cheese or ham or seafood or vegetables)
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)	quiche (adjective)
tasting sour like a lemon
harsh