the 10 heavenly stems 甲 (jiǎ), 乙 (yǐ), 丙 (bǐng), 丁 (dīng), 戊 (wù), 己 (jǐ), 庚 (gēng), 辛 (xīn), 壬 (rén), 癸 (guǐ), used cyclically in the calendar and as ordinal numbers I, II etc
Meaning
tiāngāntian1 gan1
the 10 heavenly stems 甲jiǎ, 乙yǐ, 丙bǐng, 丁dīng, 戊wù, 己jǐ, 庚gēng, 辛xīn, 壬rén, 癸guǐ, used cyclically in the calendar and as ordinal numbers I, II etc