| 1 | 分子 | 份子 | fèn zǐ | fen4 zi3 | members of a class or group; political elements (such as intellectuals or extremists); part | | |
| 2 | 分子 | 分子 | fēn zǐ | fen1 zi3 | molecule; (math) numerator of a fraction | | |
| 3 | 电子 | 電子 | diàn zǐ | dian4 zi3 | electronic; electron (particle physics) | | |
| 4 | 原子 | 原子 | yuán zǐ | yuan2 zi3 | atom; atomic | | |
| 5 | 离子 | 離子 | lí zǐ | li2 zi3 | ion | | |
| 6 | 子 | 子 | zǐ | zi3 | son; child; seed; egg; small thing; 1st earthly branch: 11 p.m.-1 a.m., midnight, 11th solar month (7th December to 5th January), year of the Rat; Viscount, fourth of five orders of nobility 五等爵位 ; ancient Chinese compass point: 0° (north) | | |
| 7 | 妻子 | 妻子 | qī zǐ | qi1 zi3 | wife and children | | |
| 8 | 女子 | 女子 | nǚ zǐ | nu:3 zi3 | woman; female | | |
| 9 | 知识分子 | 知識分子 | zhī shi fèn zǐ | zhi1 shi5 fen4 zi3 | intellectual; intelligentsia; learned person | | |
| 10 | 男子 | 男子 | nán zǐ | nan2 zi3 | a man; a male | | |
| 11 | 粒子 | 粒子 | lì zǐ | li4 zi3 | (elementary) particle; grain | | |
| 12 | 子女 | 子女 | zǐ nǚ | zi3 nu:3 | children; sons and daughters | | |
| 13 | 电子计算机 | 電子計算機 | diàn zǐ jì suàn jī | dian4 zi3 ji4 suan4 ji1 | electronic computer | | |
| 14 | 因子 | 因子 | yīn zǐ | yin1 zi3 | factor; (genetic) trait; (math.) factor; divisor | | |
| 15 | 原子核 | 原子核 | yuán zǐ hé | yuan2 zi3 he2 | atomic nucleus | | |
| 16 | 小子 | 小子 | xiǎo zǐ | xiao3 zi3 | (literary) youngster; (old) young fellow (term of address used by the older generation); (old) I, me (used in speaking to one's elders) | | |
| 17 | 孢子 | 孢子 | bāo zǐ | bao1 zi3 | variant of 孢子 ; spore | | |
| 18 | 子弹 | 子彈 | zǐ dàn | zi3 dan4 | bullet; Classifiers: 粒 | | |
| 19 | 孙子 | 孫子 | sūn zǐ | Sun1 zi3 | Sun Tzu, also known as Sun Wu 孙武 | | |
| 20 | 孔子 | 孔子 | kǒng zǐ | Kong3 zi3 | Confucius (551-479 BC), Chinese thinker and social philosopher, also known as 孔夫子 | | |
| 21 | 中子 | 中子 | zhōng zǐ | zhong1 zi3 | neutron | | |
| 22 | 老子 | 老子 | lǎo zǐ | Lao3 zi3 | Laozi or Lao-tze (c. 500 BC), Chinese philosopher, the founder of Taoism; the sacred book of Daoism, 道德经 by Laozi | | |
| 23 | 精子 | 精子 | jīng zǐ | jing1 zi3 | sperm; spermatozoon | | |
| 24 | 子宫 | 子宮 | zǐ gōng | zi3 gong1 | uterus; womb | | |
| 25 | 子孙 | 子孫 | zǐ sūn | zi3 sun1 | offspring; posterity | | |