jurisprudence vs civil union

jurisprudence and civil union both are nouns.

Word	Noun	Adjective	Verb	Adverb
jurisprudence	Yes	No	No	No
civil union	Yes	No	No	No

jurisprudence (noun)	civil union (noun)
the branch of philosophy concerned with the law and the principles that lead courts to make the decisions they do	a voluntary union for life (or until divorce) of adult parties of the same sex
the collection of rules imposed by authority