osage river osage orange • osaka · · · Info · Definitions · Characters · · osage river · · Text Common · · Latin · · Scripts 11 · · Length 4 · · Syllables Definitions · · · (noun) a river in Missouri that is a tributary of the Missouri River. Synonyms: Osage, Osage River. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 g latin small letter g U+0067 i latin small letter i U+0069 o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 v latin small letter v U+0076