derogation vs dense

derogation is a noun but dense is not a noun.

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

derogation (noun)	dense (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law
a communication that belittles somebody or something

derogation (adjective)	dense (adjective)
	having high relative density or specific gravity
	hard to pass through because of dense growth
	slow to learn or understand; lacking intellectual acuity
	permitting little if any light to pass through because of denseness of matter
	having component parts closely crowded together