Set
Set noun - A group of people sharing a common interest and relating together socially.
Usage example: they rarely associate with anyone outside their social set
Union
Union noun - A set containing all and only the members of two or more given sets.
Usage example: let C be the union of the sets A and B
How words are described
Both words in one sentence
- Weird Trade Union: The Flying Brick heroes, following Julie's example of pride in her power set, are in the early days of what looks like one of these organizing.
Source: Comic Book / PS238 - In the Alliance/Union universe starships can only come out of hyperspace near massive stellar objects like stars; ships that set their destination for anywhere else are never heard from again.
Source: No Warping Zone -
Union troops dug a mineshaft underneath the Confederate lines and set off a sizable stash of explosives.
Source: Dungeon Bypass
Cite this Source
Union and Set. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/set/union
Set & Union. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/set/union>.
Union or Set. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/set/union.
Google Ngram Viewer shows how "set" and "union" have occurred on timeline