gamine vs young woman

gamine and young woman both are nouns.

Word	Noun	Adjective	Verb	Adverb
gamine	Yes	No	No	No
young woman	Yes	No	No	No

As nouns, young woman is a hypernym of gamine; that is, young woman is a word with a broader meaning than gamine:

Other hypernyms of gamine include fille, girl, miss, missy, young lady.

gamine (noun)	young woman (noun)
a girl of impish appeal	a young female
a homeless girl who roams the streets