Synonyms: roomie, roommate, roomy
Definition: an associate who shares a room with you
Similar words: friend
Definition: a person you know well and regard with affection and trust
Usage: he was my best friend at the university
Definition: (of buildings and rooms) having ample space
Usage: a roomy but sparsely furnished apartment; a spacious ballroom
Similar words: commodious, convenient
Definition: large and roomy (`convenient' is archaic in this sense)
Usage: a commodious harbor; a commodious building suitable for conventions