dormmate

Example:John and his roommate decided to split the rent evenly.

Definition:A person who shares a room, typically in a house or apartment.

Example:Sarah's boarding companion was a good friend from her first year.

Definition:A person who lives and shares a room at a boarding school or institution.

Example:In the college context, a conujean is a term used to describe a female roommate.

Definition:A term used at Oxford and Cambridge mathematical colleges for a female co-resident in a 'junct' of roomers; a female roomer in such a college.