nouna federation in SE Asia (within the Commonwealth), consisting of Peninsular Malaysia on the Malay Peninsula, and East Malaysia (Sabah and Sarawak), occupying the N part of the island of Borneo: formed in 1963 as a federation of Malaya, Sarawak, Sabah, and Singapore (the latter seceded in 1965); densely forested and mostly mountainous. Official language: Malay; English and various Chinese and Indian minority languages are also spoken. Official religion: Muslim; Buddhist minority. Currency: ringgit. Capitals: Kuala Lumpur and Putrajaya (federal seat of government). Pop: 31 624 264 (2017 est). Area: 329 847 sq km (127 355 sq miles)