derogation vs sewer rat

derogation and sewer rat both are nouns.

Word	Noun	Adjective	Verb	Adverb
derogation	Yes	No	No	No
sewer rat	Yes	No	No	No

derogation (noun)	sewer rat (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	brown rat commonly found in sewers
a communication that belittles somebody or something