skirt vs young lady

skirt and young lady both are nouns.

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

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

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

skirt (noun)	young lady (noun)
a garment hanging from the waist; worn mainly by girls and women	a young female
cloth covering that forms the part of a garment below the waist
informal terms for a (young) woman
(Fungi) a remnant of the partial veil that in mature mushrooms surrounds the stem like a collar

skirt (verb)	young lady (verb)
avoid or try to avoid fulfilling, answering, or performing (duties, questions, or issues)
extend on all sides of simultaneously; encircle
pass around or about; move along the border
form the edge of