the United Kingdom
noun [singular](abbreviation (the) UK)
England, Scotland, Wales and Northern Ireland (considered as a political unit) 英国;联合王国 CultureThe United Kingdom is a member of the commonwealth and its capital is London. The name United Kingdom is found mainly in formal and official use. In more general use the country is referred to as Britain. The full form of the name is the United Kingdom of Great Britain and Northern Ireland.see also the Act of Union