brad vs secure

brad is a noun but secure is not a noun.

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

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

Other hypernyms of brad include fasten, fix.

brad (noun)	secure (noun)
a small nail

brad (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

brad (verb)	secure (verb)
fasten with brads	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