| 恒 | héng | permanent; constant; fixed; usual; ordinary; rule (old); one of the 64 trigrams of the Book of Changes; surname Heng |
| 永恒 | yǒng héng | eternal; everlasting; fig. to pass into eternity (i.e. to die) |
| 恒定 | héng dìng | constant |
| 恒温 | héng wēn | constant temperature |
| 守恒定律 | shǒu héng dìng lǜ | conservation law |
| 恒等式 | héng děng shì | identity (math.) |
| 恒等 | héng děng | identity ≡ (math., logic); identical |
| 恒星 | héng xīng | (fixed) star |
| 伯利恒 | Bó lì héng | Bethlehem (in the biblical nativity story) |
| 刘恒 | Liú Héng | Liu Heng, personal name of Han emperor Han Wendi 汉文帝; Liu Heng (1954-), novelist, author of The damned grain 狗日的粮食 |
| 守恒 | shǒu héng | conservation (e.g. of energy, momentum or heat in physics); to remain constant (of a number) |
| 恒久 | héng jiǔ | constant; persistent; long-lasting; eternal |
| 恒力 | héng lì | constant force |
| 恒加速度 | héng jiā sù dù | constant acceleration |
| 恒山 | Héng shān | Mt Heng in Shanxi, northern of the Five Sacred Mountains 五岳; Hengshan district of Jixi city 鸡西, Heilongjiang |
| 恒山区 | Héng shān qū | Hengshan district of Jixi city 鸡西, Heilongjiang |
| 恒常 | héng cháng | constant; constantly |
| 恒心 | héng xīn | perseverance |
| 恒星年 | héng xīng nián | the sidereal year (astronomy); the year defined in terms of the fixed stars |
| 恒星系 | héng xīng xì | stellar system; galaxy |
| 恒星际 | héng xīng jì | interstellar; between the fixed stars |
| 恒春 | Héng chūn | Hengchun town in Pingtung county 屏东县, Taiwan |
| 恒春半岛 | Héng chūn bàn dǎo | Hengchun Peninsula in Pingtung county 屏东县, the southernmost point of Taiwan Island |
| 恒春镇 | Héng chūn zhèn | Hengchun town in Pingtung county 屏东县, Taiwan |
| 恒河 | Héng hé | Ganges River |
| 恒河沙数 | Héng hé shā shù | countless as the grains of sand in the Ganges (idiom) |
| 恒河猴 | Héng hé hóu | rhesus macaque (Macaca mulatta); rhesus monkey; lit. river Ganges monkey of north India |
| 恒温器 | héng wēn qì | thermostat |
| 恒牙 | héng yá | permanent tooth (as opposed to deciduous tooth 乳牙); adult tooth |
| 恒生 | héng shēng | Hang Seng (name) |
| 恒生中资企业指数 | Héng shēng Zhōng zī qǐ yè zhǐ shù | Hang Seng China affiliated index |
| 恒生银行 | Héng Shēng Yín háng | Hang Seng Bank; Hang Seng bank, Hong Kong |
| 恒速率 | héng sù lǜ | constant velocity |
| 恒生指数 | Héng Shēng zhǐ shù | Hang Seng index (of Hong Kong stock market) |
| 持之以恒 | chí zhī yǐ héng | to pursue unremittingly (idiom); to persevere |
| 李恒 | Lǐ Héng | Li Heng, personal name of thirteenth Tang emperor Muzong 穆宗 (795-824), reigned 821-825 |
| 汉文帝刘恒 | Hàn wén dì Liú héng | Liu Heng (202-157 BC), the fourth Han emperor Han Wendi, reigned 180-157 BC |
| 无恒 | wú héng | to lack patience |
| 稳恒 | wěn héng | steady; stable and permanent; constant; steady-state |
| 稳恒态 | wěn héng tài | steady state; stable and permanent attitude |
| 能量守恒 | néng liàng shǒu héng | conservation of energy |
| 能量守恒定律 | néng liàng shǒu héng dìng lǜ | the law of conservation of energy |
| 醒世恒言 | xǐng shì héng yán | Stories to caution the world, vernacular short stories by Feng Menglong 冯梦龙 published in 1627 |
