something formed by uniting two or more things; combination.
a number of persons, states, etc., joined or associated together for some common purpose: student union; credit union.
a group of states or nations united into one political body, as that of the American colonies at the time of the Revolution, that of England and Scotland in 1707, or that of Great Britain and Ireland in 1801.
the Union.the United States: The Union defeated the Confederacy in 1865.
a device emblematic of union, used in a flag or ensign, sometimes occupying the upper corner next to the staff or occupying the entire field.
the act of uniting or an instance of being united in marriage or sexual intercourse: an ideal union; an illicit union.
an organization of workers; a labor union.
Mathematics.
Also called join, logical sum, sum. the set consisting of elements each of which is in at least one of two or more given sets. Symbol: ∪
the least upper bound of two elements in a lattice.
the process or result of merging or integration of disjoined, severed, or fractured elements, as the healing of a wound or broken bone, the growing together of the parts in a plant graft, the fusion of pieces in a welding process, or the like.
the junction or location at which the merging process has taken place.
any of various contrivances for connecting parts of machinery or the like.
Textiles.
a fabric of two kinds of yarn.
a yarn of two or more fibers.
Origin of union
1400–50; late Middle English <Middle French <Late Latin ūniōn- (stem of ūniō), equivalent to Latin ūn(us) one + -iōn--ion
SYNONYMS FOR union
8 wedlock; liaison.
SEE SYNONYMS FOR union ON THESAURUS.COM
ANTONYMS FOR union
1, 2 separation, division.
SEE ANTONYMS FOR union ON THESAURUS.COM
synonym study for union
1. Union,unity agree in referring to a oneness, either created by putting together, or by being undivided. A union is a state of being united, a combination, as the result of joining two or more things into one: to promote the union between two families; the Union of England and Scotland.Unity is the state or inherent quality of being one, single, individual, and indivisible (often as a consequence of union): to find unity in diversity; to give unity to a work of art.5. See alliance.
The United States; especially the northern states during the Civil War, which remained with the original United States government. (Compare Confederacy.)
A set whose members belong to at least one of a group of two or more given sets. The union of the sets {1,2,3} and {3,4,5} is the set {1,2,3,4,5}, and the union of the sets {6,7} and {11,12,13} is the set {6,7,11,12,13}. The symbol for union is . Compare intersection.