tart vs apple tart

tart and apple tart both are nouns.

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

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

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

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

tart (noun)	apple tart (noun)
a small open pie with a fruit filling	a small open pie filled with sliced apples and sugar
a pastry cup with a filling of fruit or custard and no top crust	a tart filled with sliced apples and sugar
a woman who engages in sexual intercourse for money

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