An aisle is, in general, a space for walking with rows of seats on either side or with rows of seats on one side and a wall on the other. Aisles can be seen in airplanes, certain types of buildings such as churches, Cathedrals, synagogues, meeting halls, parliaments and legislatures, courtrooms, theatres, and in certain types of passenger vehicles. Aisles can also be seen in shops, warehouses, and factories, where rather than seats they have shelving to either side.
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aisle A walkway between or along sections of seats in a theater, classroom, airplane or the like.
aisle A corridor in a supermarket with shelves on both sides.