* Islet: This is the most general term for a small, isolated piece of land surrounded by water.
* Cay: This refers to a small, low-lying island formed from sand, coral, or other marine debris.
* Key: This term is often used interchangeably with "cay" and usually refers to an island in the Caribbean.
* Rock: This term is used when the land is small and rocky, often barely emerging from the water.
* Shoal: This refers to a sandbank or area of shallow water that is often barely submerged at low tide.
* Skerry: This is a small, rocky islet that is usually uninhabited and often found near the coast.
* Stack: A tall, isolated pillar of rock that rises from the sea, often formed by erosion.
The specific term used will depend on the size, shape, and formation of the piece of land.
