joker vs derogation

joker and derogation both are nouns.

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

joker (noun)	derogation (noun)
a playing card that is usually printed with a picture of a jester	(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law
an inconspicuous clause in a document or bill that affects its meaning in a way that is not immediately apparent	a communication that belittles somebody or something
a person who enjoys telling or playing jokes
a person who does something thoughtless or annoying