| 1 | 自己 | 自己 | zì jǐ | zi4 ji3 | self-reliant; oneself; one's own | | |
| 2 | 自由 | 自由 | zì yóu | zi4 you2 | to travel alone (i.e. not with a tourist group); freedom; free; liberty; Classifiers: 个 | | |
| 3 | 自 | 自 | zì | zi4 | self; oneself; from; since; naturally; surely | | |
| 4 | 自我 | 自我 | zì wǒ | zi4 wo3 | self-; ego (psychology) | | |
| 5 | 自然界 | 自然界 | zì rán jiè | zi4 ran2 jie4 | nature; the natural world | | |
| 6 | 自身 | 自身 | zì shēn | zi4 shen1 | itself; oneself; one's own | | |
| 7 | 自觉 | 自覺 | zì jué | zi4 jue2 | conscious; aware; on one's own initiative; conscientious | | |
| 8 | 自动 | 自動 | zì dòng | zi4 dong4 | automatic; voluntarily | | |
| 9 | 自然科学 | 自然科學 | zì rán kē xué | zi4 ran2 ke1 xue2 | natural sciences | | |
| 10 | 自从 | 自從 | zì cóng | zi4 cong2 | since (a time); ever since | | |
| 11 | 自治县 | 自治縣 | zì zhì xiàn | zi4 zhi4 xian4 | autonomous county | | |
| 12 | 自治区 | 自治區 | zì zhì qū | zi4 zhi4 qu1 | autonomous region, namely: Inner Mongolia 内蒙古自治区 , Guangxi 广西壮族自治区 , Tibet 西藏自治区 , Ningxia 宁夏回族自治区 , Xinjiang 新疆维吾尔自治区 | | |
| 13 | 自行车 | 自行車 | zì xíng chē | zi4 xing2 che1 | bicycle; bike; Classifiers: 辆 | | |
| 14 | 自发 | 自發 | zì fā | zi4 fa1 | spontaneous | | |
| 15 | 自行 | 自行 | zì xíng | zi4 xing2 | voluntary; autonomous; by oneself; self- | | |
| 16 | 自杀 | 自殺 | zì shā | zi4 sha1 | to kill oneself; to commit suicide; to attempt suicide | | |
| 17 | 自愿 | 自願 | zì yuàn | zi4 yuan4 | voluntary | | |
| 18 | 自然资源 | 自然資源 | zì rán zī yuán | zi4 ran2 zi1 yuan2 | natural resource | | |
| 19 | 自治 | 自治 | zì zhì | zi4 zhi4 | self-made; improvised; homemade; handmade; to maintain self-control; self-control; autonomy | | |
| 20 | 自有 | 自有 | zì yǒu | zi4 you3 | to possess; to own; to have | | |
| 21 | 自称 | 自稱 | zì chēng | zi4 cheng1 | to call oneself; to claim to be; to profess; to claim a title | | |
| 22 | 自主权 | 自主權 | zì zhǔ quán | zi4 zhu3 quan2 | ability to make one's own decisions | | |
| 23 | 自信 | 自信 | zì xìn | zi4 xin4 | to have confidence in oneself; self-confidence | | |
| 24 | 自在 | 自在 | zì zai | zi4 zai5 | free; unrestrained; comfortable; at ease | | |
| 25 | 自力更生 | 自力更生 | zì lì gēng shēng | zi4 li4 geng1 sheng1 | regeneration through one's own effort (idiom); self-reliance | | |