础 (chǔ): foundation

础 (chǔ) is a Chinese character meaning “foundation.” Classified as HSK Level 4 (HSK 3.0 Standard, CLEC 2022), it is composed of 石 (semantic) and 出 (phonetic). It ranks #1013 in character frequency (SUBTLEX-CH corpus).

Etymologically derived, 础 stone. Its radical form 石 (stone) appears in many related characters such as 确 (què, certain, true), 碗 (wǎn, bowl), 碰 (pèng, to touch, to bump).

Spoken pronunciation

Definitions

  1. foundation

Etymology & Origin

础

pictophoneticstone

Decomposition: ⿰石出 (layout: left-right)

Stroke Order

1
2
3
4
5
6
7
8
9
10

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

Words & Compounds

HSK Vocabulary with 础

WordPinyinMeaningHSK
基础nounjī chǔbase4

Common Compounds

WordPinyinMeaning
经济基础nounjīng jì jī chǔsocio-economic base
基础教育nounjī chǔ jiào yùelementary education
基础问题jī chǔ wèn tíbasic issue
理论基础lǐ lùn jī chǔtheoretical foundation
现金基础xiàn jīn jī chǔcash basis (accounting)
应计基础yīng jì jī chǔaccruals basis (accounting)
基础设施即服务jī chǔ shè shī jí fú wù(computing) infrastructure as a service (IaaS)
基础建设jī chǔ jiàn shè(Tw) infrastructure
基础结构jī chǔ jié gòuunderlying infrastructure (of a system, organization etc)
基础设施nounjī chǔ shè shīinfrastructure
基础病nounjī chǔ bìngunderlying medical condition
基础速率jī chǔ sù lǜbasic rate (as in ISDN)
基础课jī chǔ kèbasic course
零基础adverblíng jī chǔno prior study (in an area of learning)
15
Total compounds
0
As first character
40
As last character
60
As middle character

础 appears in 15 compound words: 0 as the first character, 40 as the last, and 60 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 础 in natural Chinese text, ranked by NPMI (Normalized Pointwise Mutual Information) — a statistical measure of association strength.

基jī
0.70291,072 co-occurrences
施shī
0.47810,275 co-occurrences
奠diàn
0.472694 co-occurrences
设shè
0.45212,217 co-occurrences
上shàng
0.44923,712 co-occurrences
桩zhuāng
0.411156 co-occurrences
论lùn
0.4002,554 co-occurrences
为wéi
0.39715,174 co-occurrences
课kè
0.394730 co-occurrences
建jiàn
0.3555,900 co-occurrences

Idioms & Chengyu (3)

基础教育jīchǔ jiàoyùHSK 4+

basic education

noun
基础设施jīchǔ shèshīHSK 5+

infrastructure

noun

Showing 2 of 3 idioms containing 础.

Example Sentences

AI-Generated

打好基础对学习任何技能都很重要,不能急于求成。

Dǎ hǎo jīchǔ duì xuéxí rènhé jìnéng dōu hěn zhòngyào, bùnéng jíyú qiúchéng.

Laying a good foundation is important for learning any skill; you can't rush for quick results.

TechnewsFeb 2026

... ART 失效,关税法源转换未动摇协议基础

. . . A R T shī xiào , guān shuì fǎ yuán zhuǎn huàn wèi dòng yáo xié yì jī chǔ

... ART lapses, and the tariff law source conversion does not shake the basis of the agreement

InvestingFeb 2026

花旗组建AI基础设施团队,抢占数据中心热潮——彭博社

huā qí zǔ jiàn A I jī chǔ shè shī tuán duì , qiǎng zhàn shǔ jù zhōng xīn rè cháo — — 彭 bó shè

Citigroup builds AI infrastructure team to seize the data center boom - Bloomberg

Nownews今日新聞Feb 2026

...召!赖清德致上最高敬意:为民主留下深厚基础

. . . zhào ! lài qīng dé zhì shàng zuì gāo jìng yì : wéi mín zhǔ liú xià shēn hòu jī chǔ

... Call! Lai Qingde paid the highest respect: leave a deep foundation for democracy

UdnnewsindexFeb 2026

...征15%关税 专家:“B计画”也无法律基础

. . . zhēng 1 5 guān shuì zhuān jiā : B jì huà yě wú fǎ lǜ jī chǔ

... Impose a 15% tariff Expert: "Plan B" also has no legal basis

百度新闻Feb 2026

2025年国家开发银行发放公路基础设施贷款超360..

nián guó jiā kāi fā yín háng fā fàng gōng lù jī chǔ shè shī dài kuǎn chāo . .

2025 NDB disburses over 360 highway infrastructure loans...

Tatoeba

尊重法律是我们社会的基础。

Zūnzhòng fǎlǜ shì wǒmen shèhuì de jīchǔ.

Respect for law is fundamental to our society.

Tatoeba

物理是基础自然科学。

Wùlǐ shì jīchǔ zìrán kēxué.

Physics is the basic physical science.

Tatoeba

丹甚至没有上过基础解剖课。

Dān shènzhì méiyǒu shàng guo jīchǔ jiěpōu kè.

Dan didn't even take basic anatomy classes.

Tatoeba

这是建立在猜测的基础上。

Zhè shì jiànlì zài cāicè de jīchǔ shàng.

It is founded on supposition.

Character Family

Semantic Family — Characters sharing the 石 (stone) component

Homophones — Characters pronounced chǔ

Frequently Asked Questions

What does 础 (chǔ) mean in Chinese?
础 (chǔ) primarily means "foundation." It is classified as HSK Level 4, making it an upper-intermediate character. It ranks #1013 in character frequency.
What's the difference between 础 and 屈?
础 (chǔ) and 屈 (qū) are often confused. confusable. The key distinguishing feature: 石 vs 尸 (same 出 component).
How many strokes does 础 have?
础 is written with 10 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 础?
The radical associated with 础 is 石 (stone). This radical appears in many characters related to stone.
What are the components of 础?
础 is composed of: 石 (semantic), 出 (phonetic). Its IDS decomposition is ⿰石出 with a left-right layout. Understanding the components helps with both memorization and recognizing related characters.
What are common words containing 础?
Common words with 础 include: 基础 (jī chǔ, "base"); 经济基础 (jīng jì jī chǔ, "socio-economic base"); 基础教育 (jī chǔ jiào yù, "elementary education"); 基础问题 (jī chǔ wèn tí, "basic issue"); 理论基础 (lǐ lùn jī chǔ, "theoretical foundation"). There are over 15 compound words containing this character.
What characters sound the same as 础 (chǔ)?
Several characters share the pronunciation chǔ: 出 (to go out), 处 (to reside), 除 (to get rid of), 初 (beginning), and 4 more. Context and tones help distinguish between them in speech and writing.
Is 础 the same in simplified and traditional Chinese?
No. The simplified form is 础 and the traditional form is 礎.

Practice writing 础 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.