derogation vs gun for hire

derogation and gun for hire both are nouns.

Word	Noun	Adjective	Verb	Adverb
derogation	Yes	No	No	No
gun for hire	Yes	No	No	No

derogation (noun)	gun for hire (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	a professional killer who uses a gun
a communication that belittles somebody or something