hide vs hole up

hide is a noun but hole up is not a noun.

Word	Noun	Adjective	Verb	Adverb
hide	Yes	No	Yes	No
hole up	No	No	Yes	No

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

Other hyponyms of hide include lie low, stow away, hunker down, lie low, earth.

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

hide (verb)	hole up (verb)
make undecipherable or imperceptible by obscuring or concealing	sleep during winter
cover as if with a shroud	score a hole in one
prevent from being seen or discovered	remain secluded or in hiding
be or go into hiding; keep out of sight, as for protection and safety