| 1 | 环境 | 環境 | huán jìng | huan2 jing4 | environment; circumstances; surroundings; Classifiers: 个 ; ambient | | |
| 2 | 环节 | 環節 | huán jié | huan2 jie2 | (zoology) segment (of the body of a worm, centipede etc); (fig.) a part of an integrated whole: aspect (of a project), element (of a policy), sector (of the economy), stage (of a process), etc | | |
| 3 | 循环 | 循環 | xún huán | xun2 huan2 | to cycle; to circulate; circle; loop | | |
| 4 | 环 | 環 | huán | Huan2 | ring; hoop; loop; (chain) link; classifier for scores in archery etc; to surround; to encircle; to hem in; surname Huan | | |
| 5 | 环境保护 | 環境保護 | huán jìng bǎo hù | huan2 jing4 bao3 hu4 | environmental protection | | |
| 6 | 环绕 | 環繞 | huán rào | huan2 rao4 | to surround; to circle; to revolve around | | |
| 7 | 环境污染 | 環境污染 | huán jìng wū rǎn | huan2 jing4 wu1 ran3 | environmental pollution | | |
| 8 | 环状 | 環狀 | huán zhuàng | huan2 zhuang4 | annular; toroidal; loop-shaped; ring-like | | |
| 9 | 九连环 | 九連環 | jiǔ lián huán | jiu3 lian2 huan2 | Chinese rings, a brainteaser toy consisting of nine rings interlocked on a looped handle, the objective being to remove the rings from the handle | | |
| 10 | 环磷酰胺 | 環磷酰胺 | huán lín xiān àn | huan2 lin2 xian1 an4 | cyclophosphamide (medication) | | |
| 11 | 环香 | 環香 | huán xiāng | huan2 xiang1 | incense coil | | |
| 12 | 护孔环 | 護孔環 | hù kǒng huán | hu4 kong3 huan2 | (Tw) grommet | | |
| 13 | 电子环保亭 | 電子環保亭 | diàn zǐ huán bǎo tíng | dian4 zi3 huan2 bao3 ting2 | "electrical junk center", site for re-processing of old electrical and electronic equipment | | |
| 14 | 地理环境 | 地理環境 | de lǐ huán jìng | de5 li3 huan2 jing4 | Geographical environment | | |
| 15 | 耳环 | 耳環 | ěr huán | er3 huan2 | earring; Classifiers: 只 | | |
| 16 | 二环 | 二環 | èr huán | er4 huan2 | Second ring | | |
| 17 | 二环路 | 二環路 | èr huán lù | er4 huan2 lu4 | Second ring road (Beijing), opened in 1960s | | |
| 18 | 薄弱环节 | 薄弱環節 | bó ruò huán jié | bo2 ruo4 huan2 jie2 | weak link; loophole | | |
| 19 | 丙环唑 | 丙環唑 | bǐng huán zuò | bing3 huan2 zuo4 | propiconazole (antifungal agent) | | |
| 20 | 变焦环 | 變焦環 | biàn jiāo huán | bian4 jiao1 huan2 | (photography) focus ring | | |
| 21 | 避孕环 | 避孕環 | bì yùn huán | bi4 yun4 huan2 | coil; contraceptive coil; intrauterine device | | |
| 22 | 作业环境 | 作業環境 | zuò yè huán jìng | zuo4 ye4 huan2 jing4 | operating environment | | |
| 23 | 备用环 | 備用環 | bèi yòng huán | bei4 yong4 huan2 | backup ring | | |
| 24 | 保环主义 | 保環主義 | bǎo huán zhǔ yì | bao3 huan2 zhu3 yi4 | environmentalism | | |
| 25 | 保护环 | 保護環 | bǎo hù huán | bao3 hu4 huan2 | Protective ring | | |