wench vs girl

wench and girl both are nouns.

Word	Noun	Adjective	Verb	Adverb
wench	Yes	No	Yes	No
girl	Yes	No	No	No

As nouns, girl is a hypernym of wench; that is, girl is a word with a broader meaning than wench:

Other hypernyms of wench include fille, miss, missy, young lady, young woman.

wench (noun)	girl (noun)
informal terms for a (young) woman	a young female
	a girl or young woman with whom a man is romantically involved
	a youthful female person
	a friendly informal reference to a grown woman
	a female human offspring

wench (verb)	girl (verb)
frequent prostitutes