jurisprudence vs tax system

jurisprudence and tax system both are nouns.

Word	Noun	Adjective	Verb	Adverb
jurisprudence	Yes	No	No	No
tax system	Yes	No	No	No

jurisprudence (noun)	tax system (noun)
the branch of philosophy concerned with the law and the principles that lead courts to make the decisions they do	a legal system for assessing and collecting taxes
the collection of rules imposed by authority