› COMMERCE the long narrow space between the rows of shelves in a large store, also used to refer to the shelves themselves: Shopping online means you avoid the crowded supermarket aisles. the frozen food/home baking, etc. aisle The grocery aisles are stocked with everyday brands, priced very competitively.
› the long narrow space between rows of seats in a plane, cinema, theatre, etc.: I always ask for an aisle seat, not a window seat. The stewardess came down the aisle serving drinks.