Roommate
A roommate is a person who shares a room, apartment (British flat) or house with others. A housemate (mainly British) is someone who shares a house with others. For students living on a university campus, having at least one roommate is a traditional arrangement. Most college and university dormitories are designed for two roommates. There is a new trend among college students to request a room to themselves. Many colleges and universities are very willing to give what is called a 'super single' to one student who wants privacy.