derogation vs toughie

derogation and toughie both are nouns.

Word	Noun	Adjective	Verb	Adverb
derogation	Yes	No	No	No
toughie	Yes	No	No	No

derogation (noun)	toughie (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	a particularly difficult or baffling question or problem
a communication that belittles somebody or something	an aggressive and violent young criminal