Aisle and isle sound the same, but they mean very different things.
Aisle is a passage or walkway between rows of seats, shelves, or other objects. You will often see it in stores, churches, theaters, and airplanes. For example, We found cereal in aisle five.
Isle means an island, often a small one. It appears more often in literary, historical, or place related writing than in everyday shopping or travel directions. For example, They spent the weekend on a quiet isle.
A simple memory trick can help: aisle looks a bit like a long line, which can remind you of a walkway between rows. Isle is closely related in meaning to island, so think of water and land.
- Use aisle for walkways: Please keep the aisle clear.
- Use isle for islands: The boat approached the rocky isle.
If you mean a path between seats or shelves, choose aisle. If you mean a piece of land surrounded by water, choose isle.