Batak Syllabification: (Ba·tak)Pronunciation: /bəˈtäk/Definition of Batak noun 1 (plural same or Bataks) a member of a people of northern Sumatra. 2the Indonesian language of the Batak. adjective relating to the Batak or their language. Origin:the name in BatakBatak in other Oxford dictionaries Definition of Batak in the British & World English dictionary