[Elamur Dictionary](https://md.dictionary.elamur.ai/free/en/) · [this page in HTML](https://dictionary.elamur.ai/free/en/english/union/)

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# union

noun (a union, unions; union, uncountable)

«union» in the English dictionary: everyday and in Jewish tradition — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. A union is a group of workers who join together to protect their pay and rights (a trade union, a labor union). [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/U/union/#m1)
2. A union is a group of countries or states joined together, such as the European Union or the United States (once called «the Union»). [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/U/union/#m2)
3. Union is the act of joining things together. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/U/union/#m3)
4. In maths, the union of two sets is all the things that are in one set or the other or both. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/U/union/#m4)
5. A union can also mean a marriage between two people. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/U/union/#m5)

### In the lessons

In maths, sets: A ∪ B is the union — every member of both sets, each listed once. In history and social studies, unions of workers, and countries forming unions. A student union is a club for university students. The Union Jack is the flag of the United Kingdom. Phrases: «trade union», «the European Union», «Union Jack», «the union of two sets».

### Examples

- The workers joined a union to ask for fair pay. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/U/union/#x1)
- The United Kingdom is a union of four countries. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/U/union/#x2)
- The union of the sets {1, 2, 3} and {3, 4} is {1, 2, 3, 4}. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/U/union/#x3)
- The Union Jack flew over the town hall. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/U/union/#x4)
- The union of two rivers made a big river. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/U/union/#x5)
- Every member of the union voted. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/U/union/#x6)
- For some years they lived happily together, and their union was blessed by the birth of two sons. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/U/union/#x7)

### Note

Countable noun: «a union», «unions». Starts with a «you» sound, so we say «a union», not «an union». In maths, the union counts shared members only once: the union of {1, 2} and {2, 3} has 3 members, not 4. Do not confuse with «onion».

## In Jewish tradition

In maths, sets: A ∪ B is the union — every member of both sets, each listed once. In history and social studies, unions of workers, and countries forming unions. A student union is a club for university students. The Union Jack is the flag of the United Kingdom. Phrases: «trade union», «the European Union», «Union Jack», «the union of two sets».

### Note

Countable noun: «a union», «unions». Starts with a «you» sound, so we say «a union», not «an union». In maths, the union counts shared members only once: the union of {1, 2} and {2, 3} has 3 members, not 4. Do not confuse with «onion».

## On Mova

- [Trees and pragmatics of «union» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/U/union/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«union» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/union.html) on Mova free.
- [Trees and pragmatics of «union» in the Judaism dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/judaism/U/union/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«union» in the Judaism dictionary](https://mova.elamur.ai/free/en/dictionaries/judaism/w/union.html) on Mova free.