tartlet vs tart

tartlet and tart both are nouns.

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

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

tartlet (noun)	tart (noun)
a small tart usually used as a canape	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

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