hide vs skulk

hide is a noun but skulk is not a noun.

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

As verbs, skulk is a hyponym of hide; that is, skulk is a word with a more specific, narrower meaning than hide:

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

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