oahu oafishness • oahu island · · · Info · Definitions · Characters · · oahu · · Text Latin · · Script 4 · · Length 2 · · 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 · · a latin small letter a U+0061 h latin small letter h U+0068 o latin small letter o U+006F u latin small letter u U+0075