a formal agreement establishing an association or alliance between nations or other groups to achieve a particular aim
an organization of people (or countries) involved in a pact or treaty
a connection based on kinship or marriage or common interest; "the shifting alliances within a large family"; "their friendship constitutes a powerful bond between them"
the act of arranging elements into specified groups without regard to order
a collection of things that have been combined; an assemblage of separate parts or qualities
an alliance of people or corporations or countries for a special purpose (formerly to achieve some antisocial end but now for general political or economic purposes)
a group of people (often temporary) having a common purpose; "they were a winning combination"
a sequence of numbers or letters that opens a combination lock; "he forgot the combination to the safe"
the act of making or becoming a single unit; "the union of opposing factions"; "he looked forward to the unification of his family for the holidays"
a device on a national flag emblematic of the union of two or more sovereignties (typically in the upper inner corner)
the occurrence of a uniting of separate parts; "lightning produced an unusual union of the metals"
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"
an organization of employees formed to bargain with the employer; "you have to join the union in order to get a job"
a political unit formed from previously independent people or organizations; "the Soviet Union"
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"; "the North's superior resources turned the scale"
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; "there is strength in union"
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 forces"; "a Federal infantryman"
of trade unions; "the union movement"; "union negotiations"; "a union-shop clause in the contract"
selling (an article or cartoon) for publication in many magazines or newspapers at the same time; "he received a comfortable income from the syndication of his work"