- The definition of a sorority is a social club for females, typically at a college or university, where the girls call each other "sisters," and do activities together.
Alpha Phi is an example of a sorority.
- A chiefly social organization of women students at a college or university, usually designated by Greek letters.
- An association or a society of women.
Origin of sororityMedieval Latin sorōritās, from Latin soror, sister; see swesor- in Indo-European roots.