·noun Also (perhaps from confusion with alley), a passage into which the pews of a church open.
II. Aisle ·noun Improperly used also for the have;
— as in the phrases, a church with three aisles, the middle aisle.
III. Aisle ·noun A lateral division of a building, separated from the middle part, called the nave, by a row of columns or piers, which support the roof or an upper wall containing windows, called the clearstory wall.