noun
aisle
EYLE/aɪl/
A passage between rows of seats, shelves, or displays.
A clear aisle runs between the auditorium's rows of seats.

Etymology
The “wing” image first described a church's side division. That architectural sense developed into a passage between rows of seats, perhaps helped by confusion with alley, and later extended to other settings.
In context
my husband filed for divorce and 34 by the time we were actually sitting across an aisle from each other in front of a judge.
More examples
- Please keep your bags out of the aisle.
- He chose a seat beside the aisle on the plane.
- The audience moved slowly through the narrow theater aisles.
Forms
aisle · aisles