law vs union

law and union both are nouns.

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

law (noun)	union (noun)
the learned profession that is mastered by graduate study in a law school and that is responsible for the judicial system	the act of making or becoming a single unit
a rule or body of rules of conduct inherent in human nature and essential to or binding upon human society	the act of pairing a male and female for reproductive purposes
a generalization that describes recurring facts or events in nature	a device on a national flag emblematic of the union of two or more sovereignties (typically in the upper inner corner)
the branch of philosophy concerned with the law and the principles that lead courts to make the decisions they do	the occurrence of a uniting of separate parts
legal document setting forth rules governing a particular kind of activity	an organization of employees formed to bargain with the employer
the collection of rules imposed by authority	a political unit formed from previously independent people or organizations
the force of policemen and officers	a set containing all and only the members of two or more given sets
	healing process involving the growing together of the edges of a wound or the growing together of broken bones
	the state of being joined or united or linked
	the state of being a married couple voluntarily joined for life (or until divorce)

law (adjective)	union (adjective)
	of trade unions