Britain most often refers to: Great Britain, a large island comprising the countries of England, Scotland and Wales. The United Kingdom of Great Britain and Northern Ireland, a sovereign state in Europe comprising Great Britain and the north-eastern part of the island of Ireland. The realm of the Monarchy of the United Kingdom, comprising the United Kingdom, the Crown Dependencies, and British Overseas Territories. Britain may also refer to: Places. British Isles, an archipelago comprising Great Britain, Ireland and many other smaller islands.
https://en.wikipedia.org/wiki/Britain