secure vs copyright

secure is not a noun while copyright is a noun.

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

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

Other hyponyms of secure include suborn, patent, engage, enlist.

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

secure (adjective)	copyright (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

secure (verb)	copyright (verb)
make certain of	secure a copyright on a written work
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