六十甲子 liùshíjiǎzǐ sexagenary cycle Origin Definitions Defs Strokes Stroke Words Sentences Sents 六十 liùshí numeral sixty sixty; 60甲子 jiǎzǐ sexagenary cycle A cycle of sixty years (or sixty days) formed by combining the ten 天干 tiāngān and twelve 地支 dìzhī