Official nameÉireCapitalDublinPopulation estimate (2015)4·69 millionInternet domain extension.ieCurrencyThe euro (EUR), which consists of 100 cents, has been in circulation since 1 January 2002.TerritoryThe Republic of Ireland lies in the Atlantic Ocean, separated from Great Britain by the Irish Sea to the east, and bounded in the north-east by Northern Ireland (UK).LanguagesThe official languages are Irish (the national language) and English.Source: The Statesman's Yearbook 2018. Palgrave Macmillan, London Synonyms and related words