skirt vs hem in

skirt is a noun but hem in is not a noun.

Word	Noun	Adjective	Verb	Adverb
skirt	Yes	No	Yes	No
hem in	No	No	Yes	No

As verbs, hem in is a hyponym of skirt; that is, hem in is a word with a more specific, narrower meaning than skirt:

Other hyponyms of skirt include fringe, gird, girdle, cloister, close in, enclose, inclose, shut in, cloister.

skirt (noun)	hem in (noun)
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

skirt (verb)	hem in (verb)
avoid or try to avoid fulfilling, answering, or performing (duties, questions, or issues)	surround so as to force to give up
extend on all sides of simultaneously; encircle	surround in a restrictive manner
pass around or about; move along the border
form the edge of