jurisprudence vs legal separation

jurisprudence and legal separation both are nouns.

Word	Noun	Adjective	Verb	Adverb
jurisprudence	Yes	No	No	No
legal separation	Yes	No	No	No

jurisprudence (noun)	legal separation (noun)
the branch of philosophy concerned with the law and the principles that lead courts to make the decisions they do	(law) the cessation of cohabitation of man and wife (either by mutual agreement or under a court order)
the collection of rules imposed by authority	a judicial decree regulating the rights and responsibilities of a married couple living apart