Of the island of Great Britain, to disambiguate from Britain 'Brittany'. In Middle English (late 13th century) as Bretaygne the Grete, imitating Anglo-Norman la Grande Brettayne and 12th-century Latin maior Britannia. King James VI and I in 1604 proclaimed himself "King of Great Britain, France and Ireland".
- The island (and sometimes including some of the surrounding smaller islands) off the north-west coast of Europe made up of England, Scotland and Wales.
- (historical) shortened form of United Kingdom of Great Britain (1707-1801) Abbreviation: GB.
- (historical or loosely) the UK.