groupingcode

noun
UK /ˈɡruːpɪŋ kəʊd/
US /ˈɡruːpɪŋ koʊd/

A grouping code is a special label that puts things into the same group.

The teacher gave each table a grouping code so the students knew where to sit.


OTHER MEANINGS

2. A code used in computer programs to group related items together.

The programmer used a grouping code to organize the files by type.

3. A number or letter that shows which team or class something belongs to.

Each player's grouping code told them which team they were on.

4. A secret set of letters used to keep a group's messages together.

The club members shared a grouping code to find their own notes.