- an independent sultanate in southeastern Arabia. About 82,800 sq. mi. (212,380 sq. km). Capital: Muscat.
- a northwestern arm of the Arabian Sea, at the entrance to the Persian Gulf.
- a sultanate in SE Arabia, on the Gulf of Oman and the Arabian Sea: the most powerful state in Arabia in the 19th century, ruling Zanzibar, much of the Persian coast, and part of Pakistan. Official language: Arabic. Official religion: Muslim. Currency: rial. Capital: Muscat. Pop: 3 154 134 (2013 est). Area: about 306 000 sq km (118 150 sq miles)
