tear vs rive

tear is a noun but rive is not a noun.

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

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

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

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

Other hyponyms of tear include cleave, split.

tear (noun)	rive (noun)
a drop of the clear salty saline solution secreted by the lacrimal glands
the act of tearing
an occasion for excessive eating or drinking
an opening made forcibly as by pulling apart

tear (verb)	rive (verb)
separate or cause to separate abruptly	tear or be torn violently
to separate or be separated by force	separate or cut with a tool, such as a sharp instrument
strip of feathers
move quickly and violently
fill with tears or shed tears