科 (kē): branch of study, administrative section, division

科 (kē) is a Chinese character meaning “branch of study.” Classified as HSK Level 4 (HSK 3.0 Standard, CLEC 2022), it is composed of 禾 (structural) and 斗 (structural). It ranks #277 in character frequency (SUBTLEX-CH corpus).

Etymologically derived, 科 a hand measuring 斗 grain 禾. Its radical form 禾 (grain) appears in many related characters such as 秋 (qiū, autumn), 租 (zū, to hire), 称 (chēng, to weigh).

Spoken pronunciation

Definitions

  1. branch of study
  2. administrative section
  3. division

Etymology & Origin

科

ideographicA hand measuring 斗 grain 禾

Decomposition: ⿰禾斗 (layout: left-right)

Stroke Order

1
2
3
4
5
6
7
8
9

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

Words & Compounds

HSK Vocabulary with 科

WordPinyinMeaningHSK
科学noun/adjectivekē xuéscience4
外科nounwài kēsurgery (branch of medicine)6
科技nounkē jìscience and technology4
科幻nounkē huànscience fiction6
儿科nounér kēpediatrics6
科研verbkē yán(scientific) research5
内科nounnèi kēinternal medicine6
学科nounxué kēsubject5
科目nounkē mùacademic subject6
专科nounzhuān kēspecialized subject6
理科nounlǐ kēthe sciences (as opposed to the humanities 文科)6
科普verbkē pǔpopularization of science (abbr. for 科學普及|科学普及)6
本科nounběn kēundergraduate course4
文科nounwén kēliberal arts6
高科技noungāo kē jìhigh tech5

Common Compounds

WordPinyinMeaning
科学家kē xué jiāscientist
前科nounqián kēcriminal record
莫斯科proper-nounmò sī kēMoscow, capital of Russia
迪斯科noundí sī kē(loanword) disco
科尔kē ěrKohl (name)
科罗拉多kē luó lā duōColorado
牙科nounyá kēdentistry
科林斯kē lín sīCorinth, a city-state of ancient Greece
科克proper-nounkē kèCork, city in Ireland
妇科nounfù kēgynecology
预科nounyù kēpreparatory course (in college)
小儿科xiǎo ér kēpediatrics
神经科shén jīng kēneurology department
科林kē línColin (name)
教科书jiào kē shūtextbook
104
Total compounds
38
As first character
57
As last character
6
As middle character

科 appears in 104 compound words: 38 as the first character, 57 as the last, and 6 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 科 in natural Chinese text, ranked by NPMI (Normalized Pointwise Mutual Information) — a statistical measure of association strength.

索suǒ
0.706236,890 co-occurrences
罗luó
0.665236,252 co-occurrences
技jì
0.639159,929 co-occurrences
学xué
0.533303,340 co-occurrences
丑chǒu
0.52919,762 co-occurrences
辰chén
0.50721,118 co-occurrences
莫mò
0.50540,792 co-occurrences
丙bǐng
0.48214,734 co-occurrences
医yī
0.46931,000 co-occurrences
斯sī
0.450129,368 co-occurrences

Idioms & Chengyu (19)

百科全书bǎi kē quán shūHSK 4+

encyclopedia; CL:本,集

phrase
北达科他Běi-DákētāHSK 4+

North Dakota (a state in the Upper Midwest region of the United States)

金科玉律jīnkēyùlǜHSK 5+

a law, discipline, norm or regulation that is considered absolute and not allowed to be disputed or challenged

phrase
科幻电影kē huàn diàn yǐngHSK 6+

science fiction movie

phrase
科幻小说kē huàn xiǎo shuōHSK 6+

science fiction novel

phrase
科特迪瓦KētèdíwǎHSK 7+

Ivory Coast, Côte d'Ivoire (a country in West Africa)

科西嘉岛Kēxījiā DǎoHSK 6+

Corsica Island

泌尿外科mìniào wàikēHSK 7+

urology; urological surgery

noun
南达科他Nán-DákētāHSK 4+

South Dakota (a state in the Upper Midwest region of the United States)

社会科学shè huì kē xuéHSK 4+

social sciences

phrase
生物科技shēngwù kējìHSK 4+

biotechnology

noun
新斯科舍Xīn SīkēshèHSK 7+

(Mainland China) Nova Scotia (a province in eastern Canada)

Showing 12 of 19 idioms containing 科.

Example Sentences

AI-Generated

科学技术的发展给我们的生活带来了很多便利。

Kēxué jìshù de fāzhǎn gěi wǒmen de shēnghuó dài lái le hěn duō biànlì.

The development of science and technology has brought much convenience to our lives.

百度新闻Feb 2026

越疆机器人登上央视春晚,硬核科技点亮高端智造之光

yuè jiāng jī qì rén dēng shǎng yāng shì chūn wǎn , yìng hé kē jì diǎn liàng gāo duān zhì zào zhī guāng

Yuejiang Robot on CCTV Spring Festival Gala, Hardcore Technology Lights Up High-end Intelligent Manufacturing

百度新闻Feb 2026

俄罗斯莫斯科地铁举行中国春节主题列车发车仪式

é luó sī mò sī kē dì tiě jǔ háng zhōng guó chūn jié zhǔ tí liè chē fā chē yí shì

Chinese New Year-themed train launch ceremony held in Russia's Moscow Metro

百度新闻Feb 2026

科学内调成美肤新刚需,肌原光以“产学研”硬...

kē xué nèi diào chéng měi fū xīn gāng xū , jī yuán guāng yǐ chǎn xué yán yìng . . .

Scientific internal conditioning into the skin beauty of the new just demand, the original light to "production, research" hard...

百度新闻Feb 2026

青岛恒星科技学院:产教融合协同出海,绘就全球化新图...

qīng dǎo héng xīng kē jì xué yuàn chǎn jiào róng gě xié tóng chū hǎi , huì jiù quán qiú huā xīn tú . . .

Qingdao Hengxing Science and Technology College: Industry-Education Integration and Collaboration to Go to Sea, Drawing a New Map of Globalization...

百度新闻Feb 2026

抖音集团李亮:炒作“字节是恒科的最大空头”很荒唐也..

dǒu yīn jí tuán lǐ liàng chǎo zuò zì jié shì héng kē de zuì dà kōng tóu hěn huāng táng yě . .

Jitterbug Group's Li Liang: The speculation that "Byte is the biggest short of Henco" is absurd and...

Tatoeba

这种科技的优势是什么?

Zhèzhǒng kējì de yōushì shì shénme?

What is the advantage of this technology?

Tatoeba

有枪 ,谁还需要科学?

Yǒu qiāng, shéi hái xūyào kēxué?

Who needs science when you've got guns?

Tatoeba

你在学校里读哪些科目?

Nǐ zài xuéxiào lǐ dú nǎxiē kēmù?

What subjects are you taking at school?

Tatoeba

你最喜欢哪一个科目?

Nǐ zuì xǐhuan nǎyīge kēmù?

What subject do you like best?

Character Family

Homophones — Characters pronounced kē

Frequently Asked Questions

What does 科 (kē) mean in Chinese?
科 (kē) primarily means "branch of study." It is classified as HSK Level 4, making it an upper-intermediate character. It ranks #277 in character frequency.
How many strokes does 科 have?
科 is written with 9 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 科?
The radical associated with 科 is 禾 (grain). This radical appears in many characters related to grain.
What are the components of 科?
科 is composed of: 禾 (structural), 斗 (structural). Its IDS decomposition is ⿰禾斗 with a left-right layout. Understanding the components helps with both memorization and recognizing related characters.
What are common words containing 科?
Common words with 科 include: 科学 (kē xué, "science"); 科学家 (kē xué jiā, "scientist"); 外科 (wài kē, "surgery (branch of medicine)"); 科技 (kē jì, "science and technology"); 前科 (qián kē, "criminal record"). There are over 104 compound words containing this character.
What characters sound the same as 科 (kē)?
Several characters share the pronunciation kē: 可 (can, may), 克 (to be able to), 客 (guest, customer), 刻 (quarter (hour)), and 6 more. Context and tones help distinguish between them in speech and writing.
Is 科 the same in simplified and traditional Chinese?
Yes, 科 is written the same way in both simplified and traditional Chinese.

Practice writing 科 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.