Webster's Revised Unabridged Dictionary · 1913

Okinawa

Okinawa , proper noun

1.
the largest island of the central Ryukyu Islands.
2.
A campaign in the closing days of World War II in the Pacific (April-June 1945); in savage close-quarter fighting US marines and regular army troops took the island from the Japanese; considered the greatest victory of the Pacific campaign for the Americans.