derogation vs user

derogation and user both are nouns.

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

derogation (noun)	user (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	a person who makes use of a thing; someone who uses or employs something
a communication that belittles somebody or something	a person who uses something or someone selfishly or unethically
	a person who takes drugs