Definition: Meaning of, Borneo in English to English dictionary.
Pronunciation:/ ˈbɔːnɪəʊ /
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the largest island of the Malay ARCHIPELAGO (=a group of many islands) in southeast Asia. Part of it belongs to Malaysia and part of it to Indonesia, and it also includes the Sultanate of BRUNEI . Its population is 12.5 million (1991).