Island
An island or isle is any piece of sub-continental land that is surrounded by water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island in a river or a lake island may be called an eyot or ait, and a small island off the coast may be called a holm. A grouping of geographically or geologically related islands is called an archipelago, such as the Philippines.
List of islands of the United Kingdom
This is a list of islands of the United Kingdom. The United Kingdom of Great Britain and Northern Ireland has thousands of islands within its territory and several external territories. This is a list of selected British islands grouped by constituent country or overseas territory. The largest British island is Great Britain, which forms a substantial majority of the United Kingdom and is the ninth-largest island in the world.