aisle > define

noun

• A long narrow passage (as in a cave or woods. )
• Passageway between seating areas as in an auditorium or passenger vehicle or between areas of shelves of goods as in stores.
  • synonyms: gangway
• Part of a church divided laterally from the nave proper by rows of pillars or columns. .

• (n.) Also (perhaps from confusion with alley), a passage into which the pews of a church open.
• (n.) Improperly used also for the have; -- as in the phrases, a church with three aisles, the middle aisle.
• (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.