| Types. |
| Categories |
| School units |
| Social ranks |
| Alumni groups |
| Teaching load |
| Campus groups |
| Reunion groups |
| Marxist groups |
| School periods |
| Schedule makeup |
| Social divisions |
| Campus divisions |
| Schoolroom groups |
| Yearbook divisions |
| Groups of students |
| Curriculum listings |
| Business and tourist |
| Student assignments? |
| Brown catalog listing |
| College reunion groups |
| Where pupils dart about |
| English and French, for two |
| English and math, for example |