noun also (perhaps from confusion with alley), a passage into which the pews of a church open.
2. aisle ·noun improperly used also for the have;
as in the phrases, a church with three aisles, the middle aisle.
3. 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.