jurisprudence vs public law

jurisprudence and public law both are nouns.

Word	Noun	Adjective	Verb	Adverb
jurisprudence	Yes	No	No	No
public law	Yes	No	No	No

jurisprudence (noun)	public law (noun)
the branch of philosophy concerned with the law and the principles that lead courts to make the decisions they do	a law affecting the public at large
the collection of rules imposed by authority