a republic in E Africa, on the Indian Ocean: formed by the union of the independent states of Tanganyika and Zanzibar in 1964; a member of the Commonwealth. Exports include coffee, tea, sisal, and cotton. Official languages: Swahili and English. Religions: Christian, Muslim, and animist. Currency: Tanzanian shilling. Capital: officially Dodoma (though some functions remain in Dar es Salaam). Pop: 57 310 019 (2017 est). Area: 945 203 sq km (364 943 sq miles)