Definition of: aisle

(īl) noun
1. A passageway, as in a church, theater, or other audience-room, by which the pews or seats may be reached or the room traversed.
2. Originally, a lateral division or wing of a church, flanking the main structure or nave, from which it usually is divided by a range of columns or piers.
3. Any similar wing or passage, as in a forest. ♦Homophone: isle. [<OF aile, ele wing (of a building) <) L ala wing; spelling infl. by isle]