clinch vs secure

clinch is a noun but secure is not a noun.

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

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

Other hypernyms of clinch include fasten, fix.

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

Other hypernyms of clinch include fasten, fix.

clinch (noun)	secure (noun)
(boxing) the act of one boxer holding onto the other to avoid being hit and to rest momentarily
a tight or amorous embrace
the flattened part of a nail or bolt or rivet
a small slip noose made with seizing
a device (generally used by carpenters) that holds things firmly together

clinch (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

clinch (verb)	secure (verb)
settle conclusively	make certain of
flatten the ends (of nails and rivets)	cause to be firmly attached
secure or fasten by flattening the ends of nails or bolts	fill or close tightly with or as if with a plug
hold in a tight grasp	furnish with battens
embrace amorously	get by special effort
hold a boxing opponent with one or both arms so as to prevent punches	assure payment of