challenge vs law

challenge and law both are nouns.

Word	Noun	Adjective	Verb	Adverb
challenge	Yes	No	Yes	No
law	Yes	No	No	No

challenge (noun)	law (noun)
a call to engage in a contest or fight	the learned profession that is mastered by graduate study in a law school and that is responsible for the judicial system
questioning a statement and demanding an explanation	a rule or body of rules of conduct inherent in human nature and essential to or binding upon human society
a formal objection to the selection of a particular person as a juror	a generalization that describes recurring facts or events in nature
a demand by a sentry for a password or identification	the branch of philosophy concerned with the law and the principles that lead courts to make the decisions they do
a demanding or stimulating situation	legal document setting forth rules governing a particular kind of activity
	the collection of rules imposed by authority
	the force of policemen and officers

challenge (verb)	law (verb)
issue a challenge to
take exception to
raise a formal objection in a court of law
ask for identification