practice of law vs jurisprudence

practice of law and jurisprudence both are nouns.

Word	Noun	Adjective	Verb	Adverb
practice of law	Yes	No	No	No
jurisprudence	Yes	No	No	No

practice of law (noun)	jurisprudence (noun)
the learned profession that is mastered by graduate study in a law school and that is responsible for the judicial system	the branch of philosophy concerned with the law and the principles that lead courts to make the decisions they do
	the collection of rules imposed by authority