gamine vs young lady

gamine and young lady both are nouns.

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

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

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

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