Oman ōmänˈ [key], officially Sultanate of Oman, independent sultanate (2015 est. pop. 3,287,000), c.82,000 sq mi (212,380 sq km), SE Arabian peninsula, on the Gulf of Oman and the Arabian Sea. It is bordered on the west by Yemen and Saudi Arabia and on the north by the United Arab Emirates, which separates the major portion of the sultanate from a smaller area (the Musandam Peninsula) on the Strait of Hormuz and very small landlocked exclave between them (Madha). The capital and largest city is Muscat.

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