A vestibule, foyer or entranceway with doors to the exterior on one end and doors to the interior on the other, functioning to keep indoor and outdoor air, humidity, and air temperatures separate.
A sealed, airtight chamber, such as in a manned spacecraft or submarine, used to provide access to and from the sealed area without allowing air out or water in.
A corridor; a hallway.
A meal served and eaten at a college's hall.
A college's canteen, which is often but not always coterminous with a traditional hall.
A meeting room.
A building providing student accommodation at a university.
A living room.
A place for special professional education, or for conferring professional degrees or licences.
The principal room of a secular medieval building.
A manor house (originally because a magistrate's court was held in the hall of his mansion).