The word aisle is often confused with Isle. If you are looking for the meaning of a small island then the word you are looking for is isle but if you are looking for the word to describe a division between seats or goods or division in church then the word you need is aisle.
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how do you spell aisle
The conventional spelling is aisle.
a walkway between or along sections of seats in a theater, classroom, or the like.
in the aisles (of an audience) convulsed with laughter.