oahu island oahu • oak · · · Info · Definitions · Characters · · oahu island · · Text Common · · Latin · · Scripts 11 · · Length 4 · · Syllables Definitions · · · (noun) an island of central Hawaii (between Molokai and Kauai); the chief island of the state. Synonyms: Oahu, Oahu Island. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 d latin small letter d U+0064 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F s latin small letter s U+0073 u latin small letter u U+0075