ūnˈionize or ūnˈionise transitive verb

1. To recruit into a trade union
2. To organize the workforce of (a body, company or industry) into a trade union

union catalogue noun

A library catalogue combining, usu alphabetically, the contents of a number of catalogues or listing the contents of a number of libraries

union flag noun

A flag symbolizing union, esp the national flag of the United Kingdom, consisting of a union of the crosses of St George, St Andrew, and St Patrick, commonly called the Union Jack

union language noun

An artificial language formed from related dialects

union list noun

A list of materials available on a specific subject, in each case naming the library, and locating the material precisely in it

union pipes see uillean(n) pipes

Union Shona see Shona

union shop noun

A workplace in which employees must belong to a trade union

union suit noun

Underwear in the form of combinations for man or boy

union territory noun

One of the administrative divisions that, along with states, make up the Republic of India

art union

An association aiming at promotion of an interest in the fine arts, esp by raffling pictures

the Union

1. The legislative incorporation of England and Scotland in 1707, or of Ireland with both in 1801
2. The American Union or United States
3. The Union of South Africa (1910)