jurisprudence vs class action

jurisprudence and class action both are nouns.

Word	Noun	Adjective	Verb	Adverb
jurisprudence	Yes	No	No	No
class action	Yes	No	No	No

jurisprudence (noun)	class action (noun)
the branch of philosophy concerned with the law and the principles that lead courts to make the decisions they do	a lawsuit brought by a representative member of a large group of people on behalf of all members of the group
the collection of rules imposed by authority