rupture vs rive

rupture is a noun but rive is not a noun.

Word	Noun	Adjective	Verb	Adverb
rupture	Yes	No	Yes	No
rive	No	No	Yes	No

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

Other hyponyms of rupture include lacerate, pull, rend, rip, rip up, shred, tear up.

rupture (noun)	rive (noun)
the act of making a sudden noisy break
a personal or social separation (as between opposing factions)
state of being torn or burst open

rupture (verb)	rive (verb)
separate or cause to separate abruptly	tear or be torn violently
	separate or cut with a tool, such as a sharp instrument