skulk vs hide

skulk is not a noun while hide is a noun.

Word	Noun	Adjective	Verb	Adverb
skulk	No	No	Yes	No
hide	Yes	No	Yes	No

As verbs, hide is a hypernym of skulk; that is, hide is a word with a broader meaning than skulk:

Other hypernyms of skulk include conceal.

skulk (noun)	hide (noun)
	body covering of a living animal
	the dressed skin of an animal (especially a large animal)

skulk (verb)	hide (verb)
move furtively	make undecipherable or imperceptible by obscuring or concealing
avoid responsibilities and duties, e.g., by pretending to be ill	cover as if with a shroud
lie in wait, lie in ambush, behave in a sneaky and secretive manner	prevent from being seen or discovered
	be or go into hiding; keep out of sight, as for protection and safety