| 井 | jǐng | a well; CL:口; neat; orderly; Jing, one of the 28 constellations of Chinese astronomy; surname Jing |
| 矿井 | kuàng jǐng | a mine; a mine shaft |
| 井冈山 | Jǐng gāng shān | Jinggangshan county level city in Ji'an 吉安, Jiangxi; Jinggang Mountains, in the Jiangxi-Hunan border region |
| 钻井 | zuàn jǐng | to drill (e.g. for oil); a borehole |
| 天井 | tiān jǐng | courtyard; patio; veranda; atrium; acupuncture point TB10 |
| 油井 | yóu jǐng | oil well |
| 井口 | jǐng kǒu | entrance to mine |
| 龙井 | Lóng jǐng | Longjing county level city in Yanbian Korean autonomous prefecture 延边朝鲜族自治州, Jilin; Lungching township in Taichung county 台中县, Taiwan; also Longjing tea 龙井茶 |
| 水井 | shuǐ jǐng | (water) well |
| 井田 | jǐng tián | the well-field system of ancient China |
| 自流井 | Zì liú jǐng | Ziliujing district of Zigong city 自贡市, Sichuan |
| 凿井 | záo jǐng | to dig a well |
| 龙井茶 | lóng jǐng chá | Longjing (tea) |
| 盐井 | Yán jǐng | Yanjing, common place name; former county 1983-1999, now part of Markam county 芒康县 in Chamdo prefecture, Tibet |
| 井然 | jǐng rán | tidy, methodical |
| 井田制 | jǐng tián zhì | well-field system |
| 井陉 | Jǐng xíng | Jingxing county in Shijiazhuang 石家庄, Hebei |
一年被蛇咬十年怕
井绳 | yī nián bèi shé yǎo shí nián pà jǐng shéng | bitten by a snake in one year, fears the well rope for ten years (idiom); once bitten twice shy |
一朝被蛇咬，
十年怕井绳 | yī zhāo bèi shé yǎo ,
shí nián pà jǐng shéng | once bitten by a snake, ten years in fear of a well rope; once bitten, twice shy (idiom) |
| 三井 | Sān jǐng | Mitsui (Japanese company) |
| 井下 | jǐng xià | underground; in the pit (mining) |
| 井井 | jǐng jǐng | orderly; tidy |
| 井井有条 | jǐng jǐng yǒu tiáo | everything clear and orderly (idiom); neat and tidy |
| 井冈山市 | Jǐng gāng shān shì | Jinggangshan county level city in Ji'an 吉安, Jiangxi |
| 井底之蛙 | jǐng dǐ zhī wā | a frog at the bottom of a well (idiom); fig. an ignorant person |
| 井水不犯河水 | jǐng shuǐ bù fàn hé shuǐ | everyone minds their own business |
| 井然有序 | jǐng rán yǒu xù | everything clear and in good order (idiom); neat and tidy |
| 井研 | Jǐng yán | Jingwan county in Leshan 乐山, Sichuan |
| 井研县 | Jǐng yán xiàn | Jingwan county in Leshan 乐山, Sichuan |
| 井号 | jǐng hào | number sign # (punctuation); hash symbol; pound sign |
| 井蛙之见 | jǐng wā zhī jiàn | the view of a frog in a well (idiom); fig. a narrow view |
| 井陉矿 | Jǐng xíng kuàng | Jingxingkuang district of Shijiazhuang city 石家庄市, Hebei |
| 井陉矿区 | Jǐng xíng kuàng qū | Jingxingkuang district of Shijiazhuang city 石家庄市, Hebei |
| 井陉县 | Jǐng xíng xiàn | Jingxing county in Shijiazhuang 石家庄, Hebei |
| 坎儿井 | kǎn ér jǐng | karez, qanat or "horizontal well" (irrigation and water management system used in Xinjiang, Central Asia and Middle East) |
| 坐井观天 | zuò jǐng guān tiān | lit. to view the sky from the bottom of a well (idiom); ignorant and narrow-minded |
| 从井救人 | cóng jǐng jiù rén | to jump into a well to rescue sb else (idiom); fig. to help others at the risk to oneself |
| 投井下石 | tóu jǐng xià shí | to throw stones at sb who fell down a well (idiom); to hit a person who is down |
| 探井 | tàn jǐng | test pit; exploratory shaft; test well (mineralogy) |
| 暗井 | àn jǐng | blind shaft; winze |
| 沙井 | shā jǐng | manhole |
| 沙井口 | shā jǐng kǒu | manhole |
| 河水不犯井水 | hé shuǐ bù fàn jǐng shuǐ | lit. river water does not interfere with well water (idiom); Do not interfere with one another.; Mind your own business. |
| 深井 | Shēn Jǐng | Sham Tseng (area in Hong Kong) |
| 狼井 | láng jǐng | wolf trap (trou de loup), medieval defensive trap consisting of a concealed pit with sharp spikes |
| 玉井 | Yù jǐng | Yuching township in Tainan county 台南县, Taiwan |
| 玉井乡 | Yù jǐng xiāng | Yuching township in Tainan county 台南县, Taiwan |
| 王府井 | Wáng fǔ jǐng | Wangfujing neighborhood of central Beijing, famous for shopping |
| 甘井子区 | Gān jǐng zi qū | Ganjingzi district of Dalian 大连市, Liaoning |
| 发射井 | fā shè jǐng | launching silo |
