derogation vs buster

derogation and buster both are nouns.

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

derogation (noun)	buster (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	a person (or thing) that breaks up or overpowers something
a communication that belittles somebody or something	a person who breaks horses
	a robust child
	an informal form of address for a man
	a person born in the generation following the baby boom when the birth rate fell dramatically