disparagement vs ruiner

disparagement and ruiner both are nouns.

Word	Noun	Adjective	Verb	Adverb
disparagement	Yes	No	No	No
ruiner	Yes	No	No	No

disparagement (noun)	ruiner (noun)
the act of speaking contemptuously of	a person who destroys or ruins or lays waste to
a communication that belittles somebody or something