jurisprudence vs practice of law

jurisprudence and practice of law both are nouns.

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

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