young lady vs skirt

young lady and skirt both are nouns.

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

As nouns, skirt is a hyponym of young lady; that is, skirt is a word with a more specific, narrower meaning than young lady:

young lady (noun)	skirt (noun)
a young female	a garment hanging from the waist; worn mainly by girls and women
	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

young lady (verb)	skirt (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