Colleges within universities in the United Kingdom
Colleges within universities in the United Kingdom can be divided into two broad categories: those in federal universities such as the University of London, which are primarily teaching institutions joined in a federation, and residential colleges in universities following (to a greater or lesser extent) the traditional collegiate pattern of Oxford and Cambridge, which may have academic responsibilities but are primarily residential and social. The legal status of colleges varies widely, both with regard to their corporate status and their status as educational bodies.
Source: Wikipedia — Colleges within universities in the United Kingdom (CC BY-SA 4.0)