darius i dariole • darius iii · · · Info · Definitions · Characters · · darius i · · Text Common · · Latin · · Scripts 8 · · Length 4 · · Syllables Definitions · · · (noun) king of Persia who expanded the Persian Empire and invaded Greece but was defeated at the battle of Marathon (550-486 BC). Synonyms: Darius I, Darius the Great. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 d latin small letter d U+0064 i latin small letter i U+0069 r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075