It is also the 21st-most populous country, with an estimated 65.5 million inhabitants in 2016.
The UK is a constitutional monarchy with a parliamentary democracy.
So, take a stroll down memory lane to remember all of our past Word of the Year selections.
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a sovereign country in western Europe.
The Acts of Union 1800 united the Kingdom of Great Britain and the Kingdom of Ireland in 1801, forming the United Kingdom of Great Britain and Ireland.
Following the partition of Ireland and the independence of the Irish Free State in 1922, which left Northern Ireland as the only part of the island of Ireland within the United Kingdom, the name "United Kingdom of Great Britain and Northern Ireland" was adopted.
based in their capitals Edinburgh, Cardiff and Belfast, respectively.
The adjective "British" is commonly used to refer to matters relating to the United Kingdom.The UK is a developed country and has the world's sixth-largest economy by nominal GDP and ninth-largest economy by purchasing power parity.It has a high-income economy and has a "very high" Human Development Index, ranking 16th in the world.The Irish Sea lies between Great Britain and Ireland.With an area of 242,500 square kilometres (93,600 sq mi), the UK is the 78th-largest sovereign state in the world.