Official nameNegara Brunei Darussalam (State of Brunei Darussalam)CapitalBandar Seri BegawanPopulation estimate (2015)423,000Internet domain extension.bnCurrencyThe unit of currency is the Brunei dollar (BND), which consists of 100 cents. The Singapore dollar is also legal tender.TerritoryBrunei, on the coast of Borneo, is bounded in the north-west by the South China Sea and on all other sides by Sarawak (Malaysia), which splits it into two parts.LanguagesThe official language is Malay but English is in use.Source: The Statesman's Yearbook 2018. Palgrave Macmillan, London Synonyms and related words