A social association of the students or alumni of a college or university, usually having a name consisting of three Greek letters, as ‘Phi Beta…

An intercollegiate society to which distinguished (usually undergraduate) scholars may be elected as an honour. Frequently attributive.

Usually with capital initial. With the. (The name of) a general club and debating society affiliated to a university, esp. the Cambridge Union…

a society for lawyers or law students; spec. (with capital initials) each of the national bodies established in England and Wales, and in Scotland…

An exclusive and secretive senior undergraduate society at Yale University. Also (and in earliest use) attributive. Cf. Bones, n.

The Skull and Bones, an exclusive and secretive senior undergraduate society at Yale University; see Skull and Bones, n. Also and in earliest use…

gen. A students' society in a German University. Also attributive.

= fraternity, n. 7. Also attributive.

U.S. A women's society in a college or university. Also attributive.

(a) A student association at a particular university or college which provides support for students and is concerned with their welfare, rights…

In South Africa: (the name of) a non-racial, but predominantly white and liberal, association of university students.