Great Britain - an island comprising England and Scotland and Wales

Emerald Isle, Hibernia, Ireland - an island comprising the republic of Ireland and Northern Ireland

Great Britain, UK, United Kingdom, United Kingdom of Great Britain and Northern Ireland, Britain, GB - a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland

Atlantic, Atlantic Ocean - the 2nd largest ocean; separates North and South America on the west from Europe and Africa on the east

island - a land mass (smaller than a continent) that is surrounded by water