Official nameQazaqstan Respūblīkasy (Republic of Kazakhstan)CapitalAstanaPopulation estimate (2015)17·63 millionInternet domain extension.kzCurrencyThe unit of currency is the tenge (KZT), which consists of 100 tiyn.TerritoryKazakhstan is bounded in the west by the Caspian Sea and Russia, in the north by Russia, in the east by China and in the south by Uzbekistan, Kyrgyzstan and Turkmenistan.LanguagesThe official languages are Kazakh and Russian; Russian is more widely spoken.Source: The Statesman's Yearbook 2018. Palgrave Macmillan, London Synonyms and related words