Great Britain, England, UK, British Commonwealth: Definitions

• Great Britain: The island containing England, Scotland, Wales.
• England: A constituent country within the UK.
• United Kingdom (UK): Sovereign state comprising England, Scotland, Wales, Northern Ireland. Constitutional monarchy, parliamentary democracy.
• British Commonwealth (Commonwealth of Nations): Voluntary association of 56 independent, equal sovereign states, mostly former British colonies. Founded 1926.

Key distinction: UK is a country; Commonwealth is an international organization.