| 恆 | [ héng ] surname Heng |
| 恆 | [ héng ] permanent, constant, fixed, usual, ordinary, rule (old), one of the 64 hexagrams of the Book of Changes (䷟) |
| 恆久 | [ héng jiǔ ] constant, persistent, long-lasting, eternal |
| 恆力 | [ héng lì ] constant force |
| 恆加速度 | [ héng jiā sù dù ] constant acceleration |
| 恆定 | [ héng dìng ] constant |
| 恆山 | [ héng shān ] Mt Heng in Shanxi, northern mountain of the Five Sacred Mountains 五嶽|五岳[Wu3 yue4], Hengshan district of Jixi city 雞西|鸡西[Ji1 xi1], Heilongjiang |
| 恆山區 | [ héng shān qū ] Hengshan District of Jixi city 雞西|鸡西[Ji1 xi1], Heilongjiang |
| 恆常 | [ héng cháng ] constant, constantly |
| 恆心 | [ héng xīn ] perseverance |
| 恆星 | [ héng xīng ] (fixed) star |
| 恆星年 | [ héng xīng nián ] the sidereal year (astronomy), the year defined in terms of the fixed stars |
| 恆星系 | [ héng xīng xì ] stellar system, galaxy |
| 恆星際 | [ héng xīng jì ] interstellar, between the fixed stars |
| 恆春 | [ héng chūn ] Hengchun town in Pingtung County 屏東縣|屏东县[Ping2 dong1 Xian4], Taiwan |
| 恆春半島 | [ héng chūn bàn daǒ ] Hengchun Peninsula in Pingtung County 屏東縣|屏东县[Ping2 dong1 Xian4], the southernmost point of Taiwan |
| 恆春鎮 | [ héng chūn zhèn ] Hengchun town in Pingtung County 屏東縣|屏东县[Ping2 dong1 Xian4], Taiwan |
| 恆河 | [ héng hé ] Ganges River |
| 恆河沙數 | [ héng hé shā shù ] countless as the grains of sand in the Ganges (idiom) |
| 恆河猴 | [ héng hé hoú ] rhesus macaque (Macaca mulatta), rhesus monkey, lit. river Ganges monkey of north India |
| 恆溫 | [ héng wēn ] constant temperature |
| 恆溫器 | [ héng wēn qì ] thermostat |
| 恆牙 | [ héng yá ] permanent tooth (as opposed to deciduous tooth 乳牙), adult tooth |
| 恆生 | [ héng shēng ] Hang Seng (name) |
| 恆生中資企業指數 | [ héng shēng zhōng zī qǐ yè zhǐ shù ] Hang Seng China affiliated index |
| 恆等 | [ héng děng ] identity ≡ (math., logic), identical |
| 恆等式 | [ héng děng shì ] identity (math.) |
| 恆速率 | [ héng sù lǜ ] constant velocity |
| ⇒ 伯利恆 | [ bó lì héng ] Bethlehem (in the biblical nativity story) |
| ⇒ 劉恆 | [ liú héng ] Liu Heng, personal name of Han emperor Han Wendi 漢文帝|汉文帝, Liu Heng (1954-), Chinese writer |
| ⇒ 守恆 | [ shoǔ héng ] conservation (e.g. of energy, momentum or heat in physics), to remain constant (of a number) |
| ⇒ 守恆定律 | [ shoǔ héng dìng lǜ ] conservation law (physics) |
| ⇒ 持之以恆 | [ chí zhī yǐ héng ] to pursue unremittingly (idiom); to persevere |
| ⇒ 有恆 | [ yoǔ héng ] perseverance, to persevere |
| ⇒ 李恆 | [ lǐ héng ] Li Heng, personal name of thirteenth Tang emperor Muzong 穆宗[Mu4 Zong1] (795-824), reigned 821-825 |
| ⇒ 永恆 | [ yǒng héng ] eternal, everlasting, fig. to pass into eternity (i.e. to die) |
| ⇒ 漢文帝劉恆 | [ hàn wén dì liú héng ] Liu Heng (202-157 BC), the fourth Han emperor Han Wendi, reigned 180-157 BC |
| ⇒ 無恆 | [ wú héng ] to lack patience |
| ⇒ 穩恆 | [ wěn héng ] steady, stable and permanent, constant, steady-state |
| ⇒ 穩恆態 | [ wěn héng taì ] steady state, stable and permanent attitude |
| ⇒ 能量守恆 | [ néng liàng shoǔ héng ] conservation of energy (physics) |
| ⇒ 醒世恆言 | [ xǐng shì héng yán ] Stories to Awaken the World, vernacular short stories by Feng Menglong 馮夢龍|冯梦龙[Feng2 Meng4 long2] published in 1627 |