What do US and UK mean?

US is short for the United States and UK is short for the United Kingdom.

the United Kingdom of great Britain and northern Ireland is called "Britain" or "United kingdom" for short. The British Isles, native to the northwest of the European continent, are surrounded by the North Sea, the English Channel, celtic sea, the Irish Sea and the Atlantic Ocean.

the United States of America (in English), referred to as "United States" for short, is a federal and constitutional country composed of Washington, D.C., 5 states, Guam and many other overseas territories.

Its main part is located in the middle of North America. The initial edition of the World Survey by the CIA from 1989 to 1996 shows that the United States has a total area of 9.373 million square kilometers and a population of 32 million. It is an immigrant country with common English.

Extended information:

1. The country name of the United Kingdom comes from the United Kingdom of Great Britain and Northern Ireland, the main body of which is England, so it is customarily called Britain (Britain was originally the abbreviation of the Kingdom of England). It is a United Kingdom composed of England, Scotland, Wales and Northern Ireland, and the British Empire (later renamed the Commonwealth) is called the empire that never sets.

The British Isles refer to England, Scotland and Wales. Northern Ireland is located in Ireland, and many other islands are too small, so it is not included.

Second, the source of American country name

The nickname of the United States is "Uncle Sam". Legend has it that during the Anglo-American War in 1812, sam wilson (1766.9.13-1854.7.31), a businessman from troy City, new york, wrote "U.S." on the barrel that supplied beef to the army, indicating that it was American property.

this is exactly the same as the abbreviation ("U.S.") of his nickname "Uncle Sam", so people jokingly call these materials marked with "U.S." Uncle Sam. Later, "Uncle Sam" gradually became the nickname of the United States.

In the 193s, American cartoonists painted Uncle Sam as a tall, white-haired old man with a star-spangled hat and a goatee. In 1961, the United States Congress passed a resolution, officially recognizing "Uncle Sam" as a symbol of the United States.

Baidu Encyclopedia-UK

Baidu Encyclopedia-USA