oligarch oliganthous • oligarchal · · · Info · Definitions · Characters · · oligarch · · Text Latin · · Script 8 · · Length Definitions · · · (noun) one of the rulers in an oligarchy. · · Noun Definition 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 g latin small letter g U+0067 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C o latin small letter o U+006F r latin small letter r U+0072