Definitions

1. noun

The world’s third-largest island, located in Southeast Asia, comprising the states of Sabah and Sarawak in Malaysia and the provinces of North Kalimantan and South Kalimantan in Indonesia.

“The orangutan is native to the island of Borneo.”

2. proper noun

A region in Southeast Asia consisting of the island of Borneo, Malaysia, and Brunei.

“The people of Borneo have a rich cultural heritage.”