速 (sù) — HSK 4 Recognition Character: Meaning, Radical & Stroke Order

sù prompt, quick, speedy 10 strokes · Radical 辶 (to walk) · HSK 4 recognition character (认读字)
👁 Recognition only: the official HSK 4 syllabus asks you to recognize 速 when reading — handwriting it is not required (that applies to the 150 writing characters). The stroke animation below is optional but helps memory.

Pronunciation & meaning

Pronounced sù.

Stroke Order & Practice

Click Animate to see the correct stroke order, then Practice to trace it yourself.

1 2 3 4 5 6 7 8 9 10
速 — 10 strokes, numbered in writing order. 笔顺图（数字为下笔顺序）。

Decomposition

速 breaks down into 2 components arranged as Lower-left envelops Inner. Recognizing the components makes the character easier to remember and write.

速 =
辶 outer to walk
束 inner to bind

Radical

The radical of 速 is 辶 — meaning to walk. Radicals are the indexing components used in Chinese dictionaries; they often hint at a character's broad meaning category.

Other HSK 4 characters that share this radical: 达连通递逛迷邀.

How the character is built

速 is a phono-semantic compound. The semantic component 辶 (walk) carries the meaning, while the phonetic component 束 originally indicated the sound.

HSK 4 Words Containing 速

车速 chēsù vehicle speed
在学校附近要降低车速。
Zài xuéxiào fùjìn yào jiàngdī chēsù.
You should reduce speed near schools.
高速 gāosù high-speed
高速公路上车辆很多。
Gāosù gōnglù shàng chēliàng hěn duō.
There are many vehicles on the highway.
快速 kuàisù fast; quick; rapid
高铁是一种快速的交通方式。
Gāotiě shì yì zhǒng kuàisù de jiāotōng fāngshì.
High-speed rail is a fast mode of transportation.
速度 sùdù speed
请降低行驶速度。
Qǐng jiàngdī xíngshǐ sùdù.
Please reduce your driving speed.

Seen in the Real Exams / 真题例句

速 appears in 23 questions across the 19 mock & official HSK 4 exams on this site. Real exam sentences using it:

只有努力获得新的知识，才能适应社会的发展速度，做一个合格的现代人。
From Mock Exam 08 →
回答问题时，语速不要太快，声音也不要太小，别让紧张的心情影响了自己。
From Mock Exam 16 →

Tasks Featuring 速 / 相关任务

Words containing 速 appear in these official HSK 4 task scenarios — study the character in context:

📚 谈论交通出行
Transportation & Travel · 车速、高速

FAQ

What does 速 mean in Chinese?

速 (sù) means prompt, quick, speedy. It is one of the 441 characters HSK 4 requires you to recognize when reading (认读字).

How many strokes does 速 have?

速 is written in 10 strokes. Use the practice tool above to see the correct stroke order and trace it yourself.

What is the radical of 速?

The radical of 速 is 辶 (to walk). Other HSK 4 characters with the same radical include 达, 连, 通, 递, 逛.

What is the pinyin for 速?

速 is pronounced sù.

What HSK 4 words use 速?

In our HSK 4 vocabulary, 速 appears in 4 words, including 车速 (chēsù), 高速 (gāosù), 快速 (kuàisù), 速度 (sùdù). See the full list above.

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