practice of law vs set aside

practice of law is a noun but set aside is not a noun.

Word	Noun	Adjective	Verb	Adverb
practice of law	Yes	No	No	No
set aside	No	No	Yes	No

practice of law (noun)	set aside (noun)
the learned profession that is mastered by graduate study in a law school and that is responsible for the judicial system

practice of law (verb)	set aside (verb)
	make inoperative or stop
	give or assign a resource to a particular person or cause
	annul (a legal decision)