| 自私 | zì sī | selfish; selfishness |
| 自然而然 | zì rán ér rán | involuntary; automatically |
| 自私自利 | zì sī zì lì | everything for self and selfish profit (idiom); with no regard for others; selfish; mercenary |
| 自治州 | zì zhì zhōu | autonomous prefecture |
| 私自 | sī zì | private; personal; secretly; without explicit approval |
| 自动控制 | zì dòng kòng zhì | automatic control |
| 自首 | zì shǒu | to give oneself up; to surrender (to the authorities) |
| 自留地 | zì liú dì | private plot allocated to an individual on a collective farm |
| 自然人 | zì rán rén | natural person (law); see also 法人 |
| 自诉 | zì sù | private prosecution (law); (of a patient) to describe (one's symptoms) |
| 自始至终 | zì shǐ zhì zhōng | from start to finish (idiom) |
| 自由主义 | zì yóu zhǔ yì | liberalism |
| 自负盈亏 | zì fù yíng kuī | responsible for its profit and losses (of organization); financially autonomous; personal financial responsibility |
| 自尊 | zì zūn | self-respect; self-esteem; ego; pride |
| 自然主义 | zì rán zhǔ yì | naturalism (philosophy) |
| 地方自治 | dì fāng zì zhì | local autonomy; home rule |
| 自命 | zì mìng | to consider oneself to be (sth positive) |
| 自古以来 | zì gǔ yǐ lái | since ancient times |
| 自得 | zì dé | contented; pleased with one's position |
| 自修 | zì xiū | to study on one's own; self study |
| 自己人 | zì jǐ rén | those on our side; ourselves; one's own people; one of us |
| 自治县 | zì zhì xiàn | autonomous county |
| 情不自禁 | qíng bù zì jìn | unable to restrain emotions; cannot help |
| 自满 | zì mǎn | complacent; self-satisfied |
| 自给 | zì jǐ | self-reliant |
| 不由自主 | bù yóu zì zhǔ | can't help; involuntarily (idiom) |
| 自相 | zì xiāng | mutual; each other; one another; self- |
| 自由市场 | zì yóu shì chǎng | free market |
| 自负 | zì fù | to take responsibility; conceited |
| 自来 | zì lái | from the beginning; always; to come of one's own accord |
| 自大 | zì dà | arrogant |
| 自流井 | Zì liú jǐng | Ziliujing district of Zigong city 自贡市, Sichuan |
| 自爱 | zì ài | self-respect; self-love; self-regard; regard for oneself; to cherish one's good name; to take good care of one's health |
| 自尽 | zì jìn | to kill oneself; suicide |
| 自给自足 | zì jǐ zì zú | self-sufficiency; autarchy |
| 超自然 | chāo zì rán | supernatural |
| 自相矛盾 | zì xiāng máo dùn | to contradict oneself; self-contradictory; inconsistent |
| 自选 | zì xuǎn | optional; self-service |
| 径自 | jìng zì | without leave; without consulting anyone |
| 自行其是 | zì xíng qí shì | to act as one thinks fit; to have one's own way |
| 自述 | zì shù | to recount in one's own words; autobiography; written self-introduction |
| 自问 | zì wèn | to ask oneself; to search one's soul; to reach a conclusion after weighing a matter |
| 自理 | zì lǐ | to take care of oneself; to provide for oneself |
| 自由基 | zì yóu jī | free radical |
| 暗自 | àn zì | inwardly; to oneself; secretly |
| 自然选择 | zì rán xuǎn zé | natural selection |
| 自个儿 | zì gěr | erhua variant of 自个; oneself; by oneself |
| 自食其力 | zì shí qí lì | lit. to eat off one's own strength; fig. to stand on one's own feet; to earn one's own living (idiom) |
| 自白 | zì bái | confession; to make clear one's position or intentions; to brag |
| 闭关自守 | bì guān zì shǒu | close the country to international intercourse |
