Hierarchy classification:

1. top of the aat hierarchies
2. Agents Facet
3. Organizations (hierarchy name)
4. organizations (groups)
5. associations
6. societies (associations)

Anotations

Scope note:

Bodies of men associated or formally organized into social, professional, or honorary societies for some common purpose or interest. Often used to refer specifically to social fraternities, which are local or national organizations of male college students and which typically have names composed of two or three Greek letters.