jurisprudence vs grand jury

jurisprudence and grand jury both are nouns.

Word	Noun	Adjective	Verb	Adverb
jurisprudence	Yes	No	No	No
grand jury	Yes	No	No	No

jurisprudence (noun)	grand jury (noun)
the branch of philosophy concerned with the law and the principles that lead courts to make the decisions they do	a jury to inquire into accusations of crime and to evaluate the grounds for indictments
the collection of rules imposed by authority