Definitions:

1. An island of central Hawaii between Molaki and Kauai; it is the chief island of the state, with major tourist areas, including Waikiki Beach and Diamond Head, and a U.S. naval base at Pearl Harbor. NOUN
   • From time to time strong currents, high surf and turbulent water affect every beach on Oahu.
2. The third largest island in Hawaii and home to the state's largest population. NOUN
   • Waikiki Beach is only two miles from Oahu.

Synonyms:

• oahu island