- an island off the W coast of Sabah: part of Sabah state, E Malaysia: a free port. 35 sq. mi. (90.65 sq. km).
- an island off the NW coast of Borneo, forming a federal territory of Malaysia: part of the Straits Settlements until 1946, when transferred to North Borneo. Chief town: Victoria (or Labuan). Area: 98 sq km (38 sq miles)