Reunion refers to the act of coming together again after a period of separation. It is often used to describe gatherings of family, friends, or former colleagues.
Union refers to the state of being joined or combined.次のようなさまざまなコンテキストで使用できます。
* Labor Union: An organization of workers who unite to improve their working conditions and wages.
* Political Union: A group of states or countries that come together under a common government.
* Marriage Union: The joining of two individuals in a legal and social partnership.
Therefore, while both words imply a joining or coming together, reunion specifically refers to a gathering after separation, while union has a broader meaning that encompasses the state of being joined or combined.