IPA: /ˈɡruːpɪŋ/
KK: /ˈɡruːpɪŋ/
A collection of people or things that are brought together to form a group.
The teacher used grouping to organize the students for the project.
Grouping → It is formed from "group" (from Old French *groupe*, meaning a collection or cluster) and "-ing" (a suffix used to indicate the action or process of). The word "grouping" refers to the action or process of forming a collection or cluster of items or individuals.
Think of a 'group' as a collection of things coming together, and '-ing' shows that it's the action of forming that collection.