Learner's definition of AISLE
a passage where people walk: such as
a passage between sections of seats in a church, theater, airplane, etc.
see picture at theater
The bride walked down/up the aisle to the altar.
He likes to sit on the aisle. = He likes to sit in the aisle seat. [=he likes to sit in the seat next to the aisle]
By the end of the concert, the people in the theater were dancing in the aisles.
◊ When the people of an audience are laughing a lot, they can be described as rolling in the aisles.
a passage where people walk through a store, market, etc.
walk down the aisle
go down the aisle