曾 (céng): once

曾 (céng) is a Chinese character meaning “once.” Classified as HSK Level 5 (HSK 3.0 Standard, CLEC 2022), it is composed of 丷 (structural) and 日 (structural). It ranks #463 in character frequency (SUBTLEX-CH corpus).

Etymologically derived, 曾 a rice cooker on heat 日, building up steam 丷 and letting it off. Its radical form 日 (sun) appears in many related characters such as 日 (rì, sun, day), 早 (zǎo, early, morning), 时 (shí, time, hour).

Spoken pronunciation

Definitions

  1. once

Etymology & Origin

曾

ideographicA rice cooker on heat 日, building up steam 丷 and letting it off

Stroke Order

1
2
3
4
5
6
7
8
9
10
11
12

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

Words & Compounds

HSK Vocabulary with 曾

WordPinyinMeaningHSK
曾经adverbcéng jīngonce5
不曾adverbbù cénghasn't yet6

Common Compounds

WordPinyinMeaning
未曾adverbwèi cénghasn't (or haven't)
曾祖父nounzēng zǔ fùfather's father's father
似曾相识phrasesì céng xiāng shídéjà vu (the experience of seeing exactly the same situation a second time)
曾几何时phrasecéng jǐ hé shíjust a while before
曾祖母nounzēng zǔ mǔfather's father's mother
曾孙nounzēng sūngreat-grandson
曾祖nounzēng zǔfather's father's father
曾经沧海phrasecéng jīng cāng hǎilit. having crossed the vast ocean (idiom)
曾子proper-nounzēng zǐZengzi (505-435 BC), student of Confucius, presumed editor or author of Confucian classic the Great Learning 大學|大学[Da...
曾都proper-nounzēng dūsee 曾都區|曾都区
曾都区zēng dū qūZengdu, a district of Suizhou City 隨州市|随州市, Hubei
何曾hé céngdid I ever ...? (or "did he ever ...?" etc)
曾参zēng shēnZeng Shen (505-435 BC), a.k.a. 曾子, student of Confucius, presumed editor or author of Confucian classic th...
曾外祖母zēng wài zǔ mǔgreat-grandmother (mother's grandmother)
曾外祖父zēng wài zǔ fùgreat-grandfather (mother's grandfather)
29
Total compounds
86
As first character
10
As last character
3
As middle character

曾 appears in 29 compound words: 86 as the first character, 10 as the last, and 3 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 曾 in natural Chinese text, ranked by NPMI (Normalized Pointwise Mutual Information) — a statistical measure of association strength.

祖zǔ
0.56170,754 co-occurrences
任rèn
0.511165,244 co-occurrences
经jīng
0.45551,258 co-occurrences
孙sūn
0.42210,956 co-occurrences
担dān
0.41115,186 co-occurrences
父fù
0.40428,034 co-occurrences
他tā
0.39990,098 co-occurrences
亦yì
0.38822,536 co-occurrences
在zài
0.380156,598 co-occurrences
她tā
0.37826,210 co-occurrences

Idioms & Chengyu (3)

曾几何时céngjǐhéshíHSK 5+

before long; in the past; once

phrase
曾经沧海céngjīngcānghǎiHSK 7+

been there, done that

phrase
似曾相识sìcéngxiāngshíHSK 5+

to seem to have met before; déjà vu

phrase

Example Sentences

AI-Generated

他曾经在一家跨国公司工作,积累了丰富的国际经验。

Tā céngjīng zài yì jiā kuàguó gōngsī gōngzuò, jīlěi le fēngfù de guójì jīngyàn.

He once worked at a multinational company and accumulated rich international experience.

UdnnewsindexFeb 2026

荣誉观护人提供曾经毒贩第二人生 获厨艺大奖肯定

róng yù guàn hù rén tí gōng céng jīng dú fàn dì èr rén shēng huò chú yì dà jiǎng kěn dìng

Honorary Guardian Provided Second Life of a former drug dealer and was recognized by the Cooking Award

東方日報Feb 2026

龙吟虎啸:美元地位曾经衰落

lóng yín hǔ xiào : měi yuán dì wèi céng jīng shuāi luò

The roar of the dragon and the roar: The status of the dollar has declined

UdnnewsindexFeb 2026

倾销争议 天声董事长张水圳曾硬杠美政府

qīng xiāo zhēng yì tiān shēng dǒng shì cháng zhāng shuǐ 圳 céng yìng gàng měi zhèng fǔ

Dumping controversy Tiansheng Chairman Zhang Shuizhen once slammed the US government

百度新闻Feb 2026

你还是曾经那个少年!苏翊鸣斩获中国队首金

nǐ hái shì céng jīng nā gě shǎo nián ! sū 翊 míng zhǎn huò zhōng guó duì shǒu jīn

You're still the same teenager! Su Yiming wins China's first gold.

百度新闻Feb 2026

...!苏翊鸣生日当天获男子坡面障碍技巧金牌 曾..

. . . ! sū 翊 míng shēng rì dāng tiān huò nán zǐ pō miàn zhàng ài jì qiǎo jīn pái céng . .

...! Su Yiming won the gold medal in men's steeplechase on his birthday had...

Tatoeba

您曾经食物中毒过吗?

Nín céngjīng shíwùzhòngdú guo ma?

Have you ever had food poisoning?

Tatoeba

你曾经爬过阿苏山吗?

Nǐ céngjīng pá guo āsū Shān ma?

Have you ever climbed Mt. Aso?

Tatoeba

你曾试过用水肺潜水吗?

Nǐ céng shì guo yòng shuǐfèi qiánshuǐ ma?

Have you ever tried scuba diving?

Tatoeba

你曾经梦想在天空飞翔吗?

Nǐ céngjīng mèngxiǎng zài tiānkōng fēixiáng ma?

Do you ever dream about flying through the sky?

Character Family

Homophones — Characters pronounced céng

Frequently Asked Questions

What does 曾 (céng) mean in Chinese?
曾 (céng) primarily means "once." It is classified as HSK Level 5, making it an advanced character. It ranks #463 in character frequency.
How many strokes does 曾 have?
曾 is written with 12 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 曾?
The radical associated with 曾 is 日 (sun). This radical appears in many characters related to sun.
What are the components of 曾?
曾 is composed of: 丷 (structural), 日 (structural). Understanding the components helps with both memorization and recognizing related characters.
What are common words containing 曾?
Common words with 曾 include: 曾经 (céng jīng, "once"); 不曾 (bù céng, "hasn't yet"); 未曾 (wèi céng, "hasn't (or haven't)"); 曾祖父 (zēng zǔ fù, "father's father's father"); 似曾相识 (sì céng xiāng shí, "déjà vu (the experience of seeing exactly the same situation a second time)"). There are over 29 compound words containing this character.
What characters sound the same as 曾 (céng)?
Several characters share the pronunciation céng: 层 (to pile on top of one another), 蹭 (to rub against). Context and tones help distinguish between them in speech and writing.
Is 曾 the same in simplified and traditional Chinese?
Yes, 曾 is written the same way in both simplified and traditional Chinese.

Practice writing 曾 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.