hide out vs hideout

hide out is not a noun while hideout is a noun.

Word	Noun	Adjective	Verb	Adverb
hide out	No	No	Yes	No
hideout	Yes	No	No	No

hide out (noun)	hideout (noun)
	a hiding place; usually a remote place used by outlaws

hide out (verb)	hideout (verb)
be or go into hiding; keep out of sight, as for protection and safety