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Unions
2 dictionary results for: unions
American Heritage Dictionary - Cite This Source - Share This
un·ion       (yōōn'yən)  Pronunciation Key 
n.  
    1. The act of uniting or the state of being united.
    2. A combination so formed, especially an alliance or confederation of people, parties, or political entities for mutual interest or benefit.
    3. The state of matrimony; marriage: "The element that was to make possible such a union was trust in each other's love" (Kate Chopin).
    4. Sexual intercourse.
    5. A combination of parishes for joint administration of relief for the poor in Great Britain.
    6. A workhouse maintained by such a union.
    7. An organization at a college or university that provides facilities for recreation; a student union.
    8. A building housing such facilities.
  1. Mathematics A set, every member of which is an element of one or another of two or more given sets.
  2. Agreement or harmony resulting from the uniting of individuals; concord.
    1. The state of matrimony; marriage: "The element that was to make possible such a union was trust in each other's love" (Kate Chopin).
    2. Sexual intercourse.
    3. A combination of parishes for joint administration of relief for the poor in Great Britain.
    4. A workhouse maintained by such a union.
    5. An organization at a college or university that provides facilities for recreation; a student union.
    6. A building housing such facilities.
    1. A combination of parishes for joint administration of relief for the poor in Great Britain.
    2. A workhouse maintained by such a union.
    3. An organization at a college or university that provides facilities for recreation; a student union.
    4. A building housing such facilities.
  3. A labor union.
  4. A coupling device for connecting parts, such as pipes or rods.
  5. A device on a flag or ensign, occupying the upper inner corner or the entire field, that signifies the union of two or more sovereignties.
  6. often Union
    1. An organization at a college or university that provides facilities for recreation; a student union.
    2. A building housing such facilities.
  7. Union The United States of America regarded as a national unit, especially during the Civil War.

adj.  
  1. Union Of, relating to, or loyal to the United States of America during the Civil War: a Union soldier.
  2. Of or relating to a labor union or labor union organizing: the union movement; union negotiations.


[Middle English, from Old French, from Late Latin ūniō, ūniōn-, from Latin ūnus, one; see oi-no- in Indo-European roots.]

The American Heritage Science Dictionary - Cite This Source - Share This
union       (yn'yən)  Pronunciation Key 
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.

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