copyright vs secure

copyright is a noun but secure is not a noun.

Word	Noun	Adjective	Verb	Adverb
copyright	Yes	No	Yes	No
secure	No	Yes	Yes	No

As verbs, secure is a hypernym of copyright; that is, secure is a word with a broader meaning than copyright:

Other hypernyms of copyright include procure.

copyright (noun)	secure (noun)
a document granting exclusive right to publish and sell literary or musical or artistic work

copyright (adjective)	secure (adjective)
	free from fear or doubt; easy in mind
	free from danger or risk
	not likely to fail or give way
	immune to attack; incapable of being tampered with
	financially safe

copyright (verb)	secure (verb)
secure a copyright on a written work	make certain of
	cause to be firmly attached
	fill or close tightly with or as if with a plug
	furnish with battens
	get by special effort
	assure payment of