井 (jǐng): Jing, one of the 28 constellations of Chinese astronomy, a well, CL:口

井 (jǐng) is a Chinese character meaning “jing, one of the 28 constellations of chinese astronomy.” Classified as HSK Level 6 (HSK 3.0 Standard, CLEC 2022), it is composed of 二 (structural). It ranks #1422 in character frequency (SUBTLEX-CH corpus).

Etymologically pictographic, 井 a mine or well. Its radical form 二 (two) appears in many related characters such as 二 (èr, two), 五 (wǔ, five), 些 (xiē, classifier indicating a small amount or small number greater than 1: some, a few, several).

Spoken pronunciation
HSK 6Radical: 二 two4 strokesFrequency #1422二 structural

Definitions

  1. Jing, one of the 28 constellations of Chinese astronomy
  2. a well
  3. CL:口

Etymology & Origin

井

pictographicA mine or well

Components:二structural

Stroke Order

1
2
3
4

Practice writing 井 with real-time feedback — trace each stroke in the correct order and build muscle memory in the HanziFeed app.

Words & Compounds

Common Compounds

WordPinyinMeaning
油井nounyóu jǐngoil well
矿井nounkuàng jǐnga mine
井井有条phrasejǐng jǐng yǒu tiáoeverything clear and orderly (idiom)
井水jǐng shuǐwell water
落井下石phraseluò jǐng xià shíto throw stones at sb who has fallen down a well (idiom)
钻井verbzuān jǐngto drill (e.g. for oil)
井上proper-nounjǐng shàngInoue (Japanese surname, pr. "ee-no-oo-ay")
市井nounshì jǐngmarketplace
松井sōng jǐngMatsui (Japanese surname)
背井离乡phrasebèi jǐng lí xiāngto leave one's native place, esp. against one's will (idiom)
井然有序phrasejǐng rán yǒu xùeverything clear and in good order (idiom)
天井nountiān jǐngcourtyard
水井nounshuǐ jǐng(water) well
井底之蛙phrasejǐng dǐ zhī wā(lit.) a frog at the bottom of a well (idiom)
打井verbdǎ jǐngto dig a well
94
Total compounds
29
As first character
47
As last character
24
As middle character

井 appears in 94 compound words: 29 as the first character, 47 as the last, and 24 in a middle position. Compound statistics computed from SUBTLEX-CH and HSK 3.0 vocabulary data.

Strongest Collocations

Characters that most frequently co-occur with 井 in natural Chinese text, ranked by NPMI (Normalized Pointwise Mutual Information) — a statistical measure of association strength.

钻zuān
0.4911,578 co-occurrences
筒tǒng
0.4902,496 co-occurrences
冈gāng
0.4742,262 co-occurrences
松sōng
0.4749,944 co-occurrences
藤téng
0.4596,928 co-occurrences
竖shù
0.437682 co-occurrences
奈nài
0.4324,792 co-occurrences
酒jiǔ
0.4296,274 co-occurrences
裕yù
0.4282,844 co-occurrences
矿kuàng
0.4182,188 co-occurrences

Idioms & Chengyu (16)

背井离乡bèijǐnglíxiāngHSK 6+

to leave one's native place and move elsewhere

phrase
从井救人cóng jǐng jiù rénHSK 6+

to jump into a well to rescue sb else (idiom); fig. to help others at the risk to oneself

phrase
古井无波gǔ jǐng wú bōHSK 7+

(idiom) calm and collected; unaffected by external influences

phrase
井底之蛙jǐngdǐzhīwāHSK 7+

a “frog in a well”, a person of very limited outlook and experience

phrase
井井有条jǐngjǐngyǒutiáoHSK 6+

neat and tidy; in perfect order; systematic

phrase
井然有序jǐngrányǒuxùHSK 6+

orderly; in apple-pie order

phrase
井蛙之见jǐngwāzhījiànHSK 7+

shallow and parochial outlook

phrase
离乡背井líxiāngbèijǐngHSK 6+

to leave one's hometown and move elsewhere

phrase
临渴穿井lín kě chuān jǐngHSK 6+

lit. face thirst and dig a well (idiom); fig. not to make adequate provision; to act when it is too late

phrase
临渴掘井línkějuéjǐngHSK 7+

to fail to make a timely preparation and look for a solution at the last minute

phrase
落井下石luòjǐngxiàshíHSK 6+

to kick someone when they are down

phrase
市井小民shì jǐng xiǎo mínHSK 6+

ordinary people; the hoi polloi; commoner

phrase

Showing 12 of 16 idioms containing 井.

Example Sentences

AI-Generated

井字在不同的语境中有不同的用法。

jǐng zì zài bù tóng de yǔ jìng zhōng yǒu bù tóng de yòng fǎ .

The character 井 has different usages in different contexts.

UdnnewsindexFeb 2026

深夜清通风井挨批 北捷致歉允诺改善

shēn yè qīng tōng fēng jǐng āi pī běi jié zhì qiàn yǔn nuò gǎi shàn

Late at night, the ventilation shaft was criticized, and Beijie apologized and promised to improve

中時新聞網Feb 2026

国3龙井段惊魂!驾驶分心追撞缓撞车 车流回堵2公...

guó 3 lóng jǐng duàn jīng hún ! jià shǐ fēn xīn zhuī zhuàng huǎn zhuàng chē chē liú huí dǔ 2 gōng . . .

National 3 Longjing section is horror! Driving distracted to chase and slow down the collision, the traffic flow is blocked by 2 kilometers...

Nownews今日新聞Feb 2026

快讯/国3龙井段惊险车祸!宾士男猛撞缓撞车 “车头全烂...

kuài xùn guó 3 lóng jǐng duàn jīng xiǎn chē huò ! bīn shì nán měng zhuàng huǎn zhuàng chē chē tóu quán làn . . .

News/National 3 Longjing section thrilling car accident! Mercedes-Benz man slammed into a slow crash "The front of the car is rotten...

BastillepostFeb 2026

井田、辕田、名田宅

jǐng tián , yuán tián , míng tián zhái

Well field, yoke field, famous field house

百度新闻Feb 2026

逛游乐场与家人失散,5岁女童坠入路边深井大哭,男子..

guàng yóu lè chǎng yǔ jiā rén shī sàn , 5 suì nǚ tóng zhuì rù lù biān shēn jǐng dà kū , nán zǐ . .

Separated from her family while visiting the playground, a 5-year-old girl fell into a deep well on the side of the road and cried, and the man:

Tatoeba

含义是哪里有水井,哪里就有居民。

Hányì shì nǎlǐ yǒu shuǐjǐng, nǎlǐ jiù yǒu jūmín.

The implication was that where there was a well, there were residents.

Tatoeba

轻井泽是著名的避暑胜地。

Qīngjǐngzé shì zhùmíng de bìshǔ shèngdì.

Karuizawa is famous as a summer resort.

Tatoeba

他每年都去轻井泽。

Tā měinián dōu qù Qīngjǐngzé.

He goes to Karuizawa every year.

Tatoeba

他终于到了绝望之井。

Tā zhōngyú dào le juéwàng zhī jǐng.

At last, he arrived at the Well of Despair.

Character Family

二 Radical Family — Characters sharing the two radical

Homophones — Characters pronounced jǐng

Frequently Asked Questions

What does 井 (jǐng) mean in Chinese?
井 (jǐng) primarily means "jing, one of the 28 constellations of chinese astronomy." It is classified as HSK Level 6, making it an advanced character. It ranks #1422 in character frequency.
How many strokes does 井 have?
井 is written with 4 strokes. The correct stroke order matters for recognition and handwriting speed — practice with the animated guide above to build proper technique.
What is the radical of 井?
The radical associated with 井 is 二 (two). This radical appears in many characters related to two.
What are the components of 井?
井 is composed of: 二 (structural). Understanding the components helps with both memorization and recognizing related characters.
What are common words containing 井?
Common words with 井 include: 油井 (yóu jǐng, "oil well"); 矿井 (kuàng jǐng, "a mine"); 井井有条 (jǐng jǐng yǒu tiáo, "everything clear and orderly (idiom)"); 井水 (jǐng shuǐ, "well water"); 落井下石 (luò jǐng xià shí, "to throw stones at sb who has fallen down a well (idiom)"). There are over 94 compound words containing this character.
What characters sound the same as 井 (jǐng)?
Several characters share the pronunciation jǐng: 经 (pass through,经典), 精 (essence), 惊 (to startle), 警 (to alert), and 6 more. Context and tones help distinguish between them in speech and writing.
Is 井 the same in simplified and traditional Chinese?
Yes, 井 is written the same way in both simplified and traditional Chinese.

Practice writing 井 with real-time feedback

Trace stroke sequences, hear spoken pronunciation, and build lasting retention with spaced repetition in the HanziFeed app.

Character data sourced from Unihan (Unicode Consortium), SUBTLEX-CH frequency corpus (Cai & Brysbaert, 2010), and Make Me a Hanzi (stroke data). Collocation strength measured via NPMI (Normalized Pointwise Mutual Information). Verified by the HanziFeed linguistics team.

HSK classification follows the HSK 3.0 Standard (Center for Language Education and Cooperation, CLEC, 2022 revision). Idiom data from Wiktionary (CC BY-SA 3.0).

Data last verified: March 2026.