Originally Posted by
noglider
I'm a real-life pedantic English teacher, and the term groupset annoys me, too.
A group is a set.
A set is a group.
...
With all due respect to your credentials as an English teacher, I'm not sure that's technically correct.
You can have a group of chess pieces, that are not a set. You can have a group of bicycle parts that are not a groupset. Conversely, I think we can have a set of something that is not a group. A single set of salt and pepper shakers come to mind. But if you collect salt and pepper shakers, you would have a
group of salt and pepper
sets.
The words set and group have slightly different meanings, even if the difference is somewhat nuanced.