Names of the Irish stateAccording to the Constitution of Ireland, the names of the Irish state are Ireland (English) and Éire (Irish). From 1922 to 1937, its legal names were the Irish Free State (English) and Saorstát Éireann (Irish). The state has jurisdiction over almost five-sixths of the island of Ireland. The rest of the island is Northern Ireland, a part of the United Kingdom.
United KingdomThe United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland, with a population of over 69 million in 2025.
Northern IrelandPart of the United KingdomNorthern Ireland is a part of the United Kingdom in the north-east of the island of Ireland. It has been variously described as a country, province or region. Northern Ireland shares an open border to the south and west with the Republic of Ireland. At the 2021 census, its population was 1,903,175, making up around 3% of the UK's population and 27% of the population on the island of Ireland.
Republic of IrelandCountry in Northwestern EuropeIreland (Irish: Éire), also known as the Republic of Ireland (Poblacht na hÉireann), is a country in Northwestern Europe. It consists of 26 of the 32 counties of the island of Ireland, with a population of about 5.4 million. Its capital and largest city is Dublin, on the eastern side of the island, with a population of over 1.5 million. The sovereign state shares its only land border with Northern Ireland, which is part of the United Kingdom.
Great BritainGreat Britain is an island in the North Atlantic Ocean off the north-west coast of continental Europe, consisting of the countries England, Scotland and Wales, which comprise most of the United Kingdom. With an area of 209,331 km2 (80,823 sq mi), it is the largest of the British Isles, the largest European island, and the ninth-largest island in the world. It is dominated by a maritime climate with narrow temperature differences between seasons.
British IslesArchipelago in north-western EuropeThe British Isles are an archipelago in the North Atlantic Ocean off the north-western coast of continental Europe, consisting of the islands of Great Britain, Ireland, the Isle of Man, the Inner and OuterHebrides, the Northern Isles (Orkney and Shetland), and over six thousand smaller islands.
Irish SeaThe Irish Sea is a 46,007 km (17,763 sq mi) body of water that separates the islands of Ireland and Great Britain. It is linked to the Celtic Sea in the south by St George's Channel and to the Inner Seas off the West Coast of Scotland in the north by the North Channel. Anglesey, North Wales, is the largest island in the Irish Sea, followed by the Isle of Man.List of islands of the British IslesThis article is a list of some of the islands that form the British Isles that have an area of 1 square kilometre (247 acres) or larger, listing area and population data. The total area of the islands is 314,965 km2 (121,609 sq mi). Great Britain accounts for the larger part of this area at 66%, with Ireland accounting for 26%, leaving the remaining 8%—an area of 23,996 km2 (9,265 sq mi)—consisting of thousands of smaller islands.
North Channel (Great Britain and Ireland)The North Channel (known in Irish and Scottish Gaelic as Sruth na Maoile, and in Scots as The Sheugh, 'the trench') is the strait between north-eastern Ireland and south-western Scotland. The Firth of Clyde merges with the channel, between the southern tip of the Kintyre peninsula and Corsewall Point on the Rhins of Galloway. Part of the Irish Sea, the channel begins north-west of the Isle of Man and runs north-west into the Atlantic Ocean.
St George's ChannelSt George's Channel (Welsh: Sianel San Siôr, Irish: Muir Bhreatan) is a sea channel connecting the Irish Sea to the north and the Celtic Sea to the southwest. It separates Wexford on the southeastern corner of Ireland from St Davids on the southwestern tip of Wales. Origin of nameThe name "St George's Channel" is recorded in 1578 in Martin Frobisher's record of his second voyage.
Atlantic OceanOceanic divisionThis video was taken by the crew of on board the ISS. The pass starts from just northeast of the island of Newfoundland over the North Atlantic Ocean to central Africa, over South Sudan.The Atlantic Ocean is the second largest of the world's five oceans, with an area of about 85,133,000 square kilometers (32,870,000 sq mi). It covers approximately 17% of Earth's surface and about 24% of its water surface area.
Northwestern EuropeNorthwestern Europe, or Northwest Europe, is a loosely defined subregion of Europe, overlapping Northern and Western Europe. The term is used in geographic, history, and military contexts. Geographic definitionsGeographically, Northwestern Europe is given by some sources as a region which includes Great Britain, Ireland, Belgium, the Netherlands, Luxembourg, Northern France, parts of or all of Germany, Denmark, Norway, Sweden, and Iceland.
Reconstruction:Proto-Celtic/ɸīweriyūRelated word or term.*As an Amazon Associate I earn from qualifying purchases.