Other forms: groupings
A grouping is a set of things put together by some shared feature. A political grouping, the main groupings, a loose grouping.
It is a looser word than group and is used where the members did not choose each other, which is why political reporting favours it. It also names the act of sorting things that way.
1noungroupingA set of things put together by some shared feature.
“The new political grouping brings together several small green parties.”
grouping is a set.
Also accepted in games: category