Definition of Union

Noun: union yoon-yun [N. Amer], yoo-nee-un [Brit]

An organization of employees formed to bargain with the employer
"you have to join the union in order to get a job";
- labor union [US], trade union, trades union, brotherhood, labour union [Brit, Cdn]
The act of pairing a male and female for reproductive purposes
"the casual unions of adolescents";
- coupling, mating, pairing, conjugation, sexual union
The state of being joined, united or linked
"there is strength in union";
- unification
(law) the state of being a married couple voluntarily joined for life (or until divorce)
"God bless this union";
- marriage, matrimony, spousal relationship, wedlock
Healing process involving the growing together of the edges of a wound or the growing together of broken bones
- conglutination
A political unit formed from previously independent people or organizations
"the Soviet Union"
A set containing all and only the members of two or more given sets
"let C be the union of the sets A and B";
- sum, join
The occurrence of a uniting of separate parts
"lightning produced an unusual union of the metals"
A device on a national flag emblematic of the union of two or more sovereignties (typically in the upper inner corner)
The act of making or becoming a single unit
"the union of opposing factions";
- unification, uniting, conjugation, jointure

Adjective: union yoon-yun [N. Amer], yoo-nee-un [Brit]

Of trade unions
"the union movement"; "union negotiations"; "a union-shop clause in the contract"

Noun: Union yoon-yun [N. Amer], yoo-nee-un [Brit]

The United States (especially the northern states during the American Civil War)
"he has visited every state in the Union"; "Lee hoped to detach Maryland from the Union";
- North

Adjective: Union yoon-yun [N. Amer], yoo-nee-un [Brit]

Being of or having to do with the northern United States and those loyal to the Union during the American Civil War
"Union soldiers";
- Federal