tart vs streetwalker

tart and streetwalker both are nouns.

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

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

tart (noun)	streetwalker (noun)
a small open pie with a fruit filling	a prostitute who attracts customers by walking the streets
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)	streetwalker (adjective)
tasting sour like a lemon
harsh