clinch vs rivet

clinch and rivet both are nouns.

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

clinch (noun)	rivet (noun)
(boxing) the act of one boxer holding onto the other to avoid being hit and to rest momentarily	heavy pin having a head at one end and the other end being hammered flat after being passed through holes in the pieces that are fastened together
a tight or amorous embrace	ornament consisting of a circular rounded protuberance (as on a vault or shield or belt)
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 (verb)	rivet (verb)
settle conclusively	direct one's attention on something
flatten the ends (of nails and rivets)	hold (someone's attention)
secure or fasten by flattening the ends of nails or bolts	fasten with a rivet or rivets
hold in a tight grasp
embrace amorously
hold a boxing opponent with one or both arms so as to prevent punches