From Middle English unyoun, from Old French union, from Late Latin ūniō, ūniōnem (oneness, unity), from Latin ūnus (one).
union (countable and uncountable, plural unions)
- (countable) The act of uniting or joining two or more things into one.
- Marriage is seen in many religions as a holy union.
- The state of being united or joined; a state of unity or harmony.
- That which is united, or made one; something formed by a combination or coalition of parts or members; a confederation; a consolidated body; a league.
- A trade union; a workers' union.
- The American Federation of Musicians is the largest union for musicians in the United States.
- An association of students at a university for social and/or political purposes; also in some cases a debating body.
- A joint or other connection uniting parts of machinery, such as pipes.
- (set theory) The set containing all of the elements of two or more sets.
- The act or state of marriage.
- (programming) A data structure that can store any of various types of item, but only one at a time.
- art union
- axiom of union
- civil union
- credit union
- enterprise union
- European Union
- labor union
- Soviet Union
- State of the Union
- student union
- trade union
- Union Day
union (third-person singular simple present unions, present participle unioning, simple past and past participle unioned)
- (set theory) To combine sets using the union operation.
union (comparative more union, superlative most union)
- Belonging to, represented by, or otherwise pertaining to a labour union.
- Actors have to be union to get work here.
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