rip vs rend

rip is a noun but rend is not a noun.

Word	Noun	Adjective	Verb	Adverb
rip	Yes	No	Yes	No
rend	No	No	Yes	No

As verbs, rip and rend are synonyms defined as:

Other synonyms of rip include pull, rive.

rip (noun)	rend (noun)
the act of rending or ripping or splitting something
a stretch of turbulent water in a river or the sea caused by one current flowing into or across another current
an opening made forcibly as by pulling apart
a dissolute man in fashionable society

rip (verb)	rend (verb)
criticize or abuse strongly and violently	tear or be torn violently
tear or be torn violently
cut (wood) along the grain
move precipitously or violently
take without the owner's consent