A city in Alameda County, California, United States. / a community in Naugatuck, New Haven County, Connecticut, USA. / A city in Fulton County, Georgia, United States.

(set theory) One of the axioms in axiomatic set theory, equivalent to the statement that a union exists for any set, containing exactly all the elements contained within the sets within that set.

Official name for the Comoros.

plural of yellow union

A trade union that is dominated or influenced by an employer and thus not properly independent.

A place of employment in which newly hired workers must join the union representing the workers within a certain period of time, typically 30 days.

Former name of Tokelau.

(printing) A maker's mark imprinted on a work to show that it is sanctioned by members of a trade union. It is often a tiny elongated rhomboid containing and surrounded by, in minuscule typeface, identifying names and the union's local chapter number.

plural of union bug

The flag of Great Britain or the United Kingdom. / (nautical, Britain) The flag flown on ships of the government of Great Britain or the United Kingdom.