disparagement vs oppressor

disparagement and oppressor both are nouns.

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

disparagement (noun)	oppressor (noun)
the act of speaking contemptuously of	a person of authority who subjects others to undue pressures
a communication that belittles somebody or something