十天干 shítiāngān ten Heavenly Stems Definitions Defs Origin Strokes Stroke Words Sentences Sents 十 shí numeral ten the number ten; 10天干 tiāngān Heavenly Stems The Ten Heavenly Stems, used in ancient Chinese calendar systems and as ordinal numbers to indicate order or rank; often used in combination with the 地支 dìzhī.