law vs legal action

law and legal action both are nouns.

Word	Noun	Adjective	Verb	Adverb
law	Yes	No	No	No
legal action	Yes	No	No	No

law (noun)	legal action (noun)
the learned profession that is mastered by graduate study in a law school and that is responsible for the judicial system	a judicial proceeding brought by one party against another; one party prosecutes another for a wrong done or for protection of a right or for prevention of a wrong
a rule or body of rules of conduct inherent in human nature and essential to or binding upon human society
a generalization that describes recurring facts or events in nature
the branch of philosophy concerned with the law and the principles that lead courts to make the decisions they do
legal document setting forth rules governing a particular kind of activity
the collection of rules imposed by authority
the force of policemen and officers