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.
Crown dependencies
The Crown dependencies (, ) are three island territories off the coast of Great Britain that are self-governing possessions of the Crown: the Bailiwick of Guernsey, the Bailiwick of Jersey and the Isle of Man. They do not form part of either the United Kingdom or the British Overseas Territories. Internationally, the dependencies are considered "territories for which the United Kingdom is responsible", rather than sovereign states. As a result, they are not member states of the Commonwealth of Nations. However, they do have relationships with the Commonwealth, the European Union, and other international organisations, and are members of the British–Irish Council. They have their own teams in the Commonwealth Games. They are not part of the European Union (EU), although they are within the EU's customs area. The Isle of Man (along with the United Kingdom) is within the EU's VAT area.