union
- noun
- /ˈjuːniən/
- Specialized
- In mathematics, the union of set A and set B includes all elements from both sets.
So we have to show that the union is compact.
- So we have to show that the union is compact.
Examples
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Let N be the union of these sets.
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And if A is the union with B, we have all of the circle, plus the intersection.
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How about the union of three sets?
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The union of atomic matter.
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These are the laws of intersection and union.
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Hence, going for full currency union is likely to yield lower interest.
Academic text (1999) -
The region boundaries were determined as the union of all overlapping hotspots.
Academic text (2017) -
Between 1992 and 1994, the number of union-affiliated construction workers more than tripled.
Academic text (1999) -
The different parts (cultures, regions) of Spain have benefited unequally from union in the Spanish state.
Academic text (1991) -
When unions change leadership, the government must approve the new leadership and recertify the union's existence and legality.
Academic text (1994)
Synonyms
A collection that contains every element from two or more sets
Antonyms
Compounds
A former country of several republics in eastern Europe and northern Asia, including Russia, that existed from 1922 to 1991
- US
An organized group of workers that negotiates with employers for better pay and working conditions
A person who belongs to a group of workers who protect pay and working conditions
A group like a bank owned by its members that offers savings accounts and low-rate loans
- US
A legal partnership between two people, often same-sex, that gives many marriage rights
A group of workers who protect rights and talk with employers about pay and work conditions
The national flag of the United Kingdom showing the crosses of England, Scotland, and Ireland
A private college in New York City that teaches art, architecture, and engineering
- Specialized
A group of countries that remove import taxes between themselves and use the same tax on imports from other countries
A group of workers in one industry who join to talk with employers about pay and conditions for every worker
- Specialized
A union only for workers in one company that is often run by the employer
An American political party that formed in 1859 to keep the country together before the Civil War
A private college in New York City that teaches art, architecture, and engineering
A group of workers in the same skilled trade who join together to protect their rights
- Formal
Long-lasting political, social, and cultural effects that continue because of the Soviet Union
- Formal
An organization that helped countries in the Americas work together before the Organization of American States
- UK
A group of workers who join together to protect their pay and rights by talking with employers
A former large country in eastern Europe and northern Asia with a communist government
A group of Catholic nuns who run schools and care for children worldwide
- Jargon
A group of workers that includes everyone in one industry no matter their job
Surface Forms
Morphology
Etymology
Union comes from the Latin unus, meaning 'one'. It is like unit and unite, and in math a union is the joining of sets into one collection that contains all the elements from each set.