1. (n.) 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.

2. (n.) Improperly used also for the have; -- as in the phrases, a church with three aisles, the middle aisle.

3. (n.) Also (perhaps from confusion with alley), a passage into which the pews of a church open.

access alley ambulatory aperture arcade artery avenue channel cloister colonnade communication conduit connection corridor covered way defile exit ferry ford gallery inlet interchange intersection junction lane opening outlet overpass pass passage passageway portico railroad tunnel traject trajet tunnel underpass