put behind bars vs jurisprudence

put behind bars is not a noun while jurisprudence is a noun.

Word	Noun	Adjective	Verb	Adverb
put behind bars	No	No	Yes	No
jurisprudence	Yes	No	No	No

put behind bars (noun)	jurisprudence (noun)
	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

put behind bars (verb)	jurisprudence (verb)
lock up or confine, in or as in a jail