a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United Kingdom
"The Queen remains the head of state for Britain, which comprises four distinct nations within the British Isles."
An ancient Briton.
"The ancient Briton who lived in the Iron Age left behind many stone circles."
Briton; British.
"The new Britain has adopted many customs from its neighbors."
The island of Great Britain, consisting of England, Scotland and Wales.
"The weather on Britain was surprisingly mild during their summer holiday across England, Scotland, and Wales."
The name Britain comes from the Latin word Britannia, which originally referred to the island's inhabitants. This Latin term was borrowed from a Brythonic language, related to modern Welsh, meaning "Britain."