young girl vs miss

young girl and miss both are nouns.

Word	Noun	Adjective	Verb	Adverb
young girl	Yes	No	No	No
miss	Yes	No	Yes	No

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

Other hypernyms of young girl include fille, girl, missy, young lady, young woman.

young girl (noun)	miss (noun)
a girl or young woman who is unmarried	a failure to hit (or meet or find etc)
	a young female

young girl (verb)	miss (verb)
	leave undone or leave out
	fail to experience
	fail to reach
	feel or suffer from the lack of
	fail to reach or get to
	fail to perceive or to catch with the senses or the mind
	be without
	fail to attend an event or activity
	be absent