These words are different because of their geography:
▶️ England is a single country. The capital of England is London.
▶️ Great Britain is an island that contains three countries:
England, Scotland, and Wales.
▶️ The United Kingdom is a political unit that includes four countries: England,
Scotland, Wales, and Northern Ireland.
However, there is some confusion because sometimes Americans say “British” to
mean “English” (from England) when in reality the island of Great Britain contains
three countries.