United Kingdom

geographical name

Definition of United Kingdom

1 or in full United Kingdom of Great Britain and Northern Ireland country in western Europe in the British Isles comprising Great Britain (England, Scotland, and Wales) and Northern Ireland; capital London area 94,251 square miles (244,110 square kilometers), population 63,182,178
2 or United Kingdom of Great Britain and Ireland country 1801–1921 comprising Great Britain and Ireland

Keep scrolling for more

More from Merriam-Webster on United Kingdom

Spanish Central: Translation of United Kingdom

Nglish: Translation of United Kingdom for Spanish Speakers

Britannica English: Translation of United Kingdom for Arabic Speakers

Comments on United Kingdom

What made you want to look up United Kingdom? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a usually brief trip or an expedition

Get Word of the Day daily email!

Test Your Vocabulary

Summer 2019 Words of the Day Quiz

  • a-bowl-of-peach-sorbet-with-cut-peaches-next-to-it
  • Which is a synonym of desideratum?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!