| 庚 | [ gēng ] age, seventh of the ten Heavenly Stems 十天干[shi2 tian1 gan1], seventh in order, letter "G" or Roman "VII" in list "A, B, C", or "I, II, III" etc, ancient Chinese compass point: 255°, hepta |
| 庚午 | [ gēng wǔ ] seventh year G7 of the 60 year cycle, e.g. 1990 or 2050 |
| 庚子 | [ gēng zǐ ] 37th year G1 of the 60-year cycle, e.g. 1960 or 2020 |
| 庚子國變 | [ gēng zǐ guó biàn ] the crisis year of 1900 involving the Boxer uprising and the eight nation military invasion |
| 庚寅 | [ gēng yín ] twenty-seventh year G3 of the 60 year cycle, e.g. 2010 or 2070 |
| 庚戌 | [ gēng xū ] forty-seventh year G11 of the 60 year cycle, e.g. 1970 or 2030 |
| 庚申 | [ gēng shēn ] fifty-seventh year G9 of the 60 year cycle, e.g. 1980 or 2040 |
| 庚糖 | [ gēng táng ] heptose (CH2O)7, monosaccharide with seven carbon atoms |
| 庚辰 | [ gēng chén ] seventeenth year G5 of the 60 year cycle, e.g. 2000 or 2060 |
| ⇒ 倉庚 | [ cāng gēng ] black-naped oriole (Oriolus chinensis) |
| ⇒ 年庚 | [ nián gēng ] date and time of a person's birth, age |
| ⇒ 華羅庚 | [ huà luó gēng ] Hua Luogeng (1910-1985), Chinese number theorist |
| ⇒ 貴庚 | [ guì gēng ] your age (honorific) |
| ⇒ 長庚 | [ cháng gēng ] Classical Chinese name for planet Venus in the west after dusk |