jurisprudence vs countersuit

jurisprudence and countersuit both are nouns.

Word	Noun	Adjective	Verb	Adverb
jurisprudence	Yes	No	No	No
countersuit	Yes	No	No	No

jurisprudence (noun)	countersuit (noun)
the branch of philosophy concerned with the law and the principles that lead courts to make the decisions they do	a suit brought against someone who has sued you
the collection of rules imposed by authority