serial killer vs derogation

serial killer and derogation both are nouns.

Word	Noun	Adjective	Verb	Adverb
serial killer	Yes	No	No	No
derogation	Yes	No	No	No

serial killer (noun)	derogation (noun)
someone who murders more than three victims one at a time in a relatively short interval	(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law
	a communication that belittles somebody or something