丝 (sī): silk, thread-like thing, (cuisine) shreds or julienne strips, classifier: a trace (of smoke etc), a tiny bit etc

丝 (sī) is a Chinese character meaning “silk.” Classified as HSK Level 7-9 (HSK 3.0 Standard, CLEC 2022), it is composed of 一 (structural). It ranks #1025 in character frequency (SUBTLEX-CH corpus).

Etymologically derived, 丝 simplified form of 絲, two threads. Its radical form 一 (one) appears in many related characters such as 一 (yī, one), 七 (qī, seven), 三 (sān, three).

Spoken pronunciation

Definitions

  1. silk
  2. thread-like thing
  3. (cuisine) shreds or julienne strips
  4. classifier: a trace (of smoke etc), a tiny bit etc

Etymology & Origin

丝

ideographicSimplified form of 絲, two threads

Components:一structural

Stroke Order

1
2
3
4
5

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

Words & Compounds

Common Compounds

WordPinyinMeaning
粉丝nounfěn sībean vermicelli
丝毫adjectivesī háothe slightest amount or degree
丝绸nounsī chóusilk (cloth)
螺丝nounluó sīscrew
爱丽丝proper-nounài lì sī(name) Alice
蛛丝马迹phrasezhū sī mǎ jìlit. spider's thread and horse track
铁丝网nountiě sī wǎngwire netting
丝带nounsī dàiribbon
金丝雀nounjīn sī quècanary
保险丝nounbǎo xiǎn sīfuse wire
螺丝刀nounluó sī dāoscrewdriver
钢丝noungāng sīsteel wire
铁丝nountiě sīiron wire
一丝不苟verbyī sī bù gǒunot one thread loose (idiom)
丝绒nounsī róngvelvet
102
Total compounds
25
As first character
53
As last character
23
As middle character

丝 appears in 102 compound words: 25 as the first character, 53 as the last, and 23 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 丝 in natural Chinese text, ranked by NPMI (Normalized Pointwise Mutual Information) — a statistical measure of association strength.

绸chóu
0.7114,250 co-occurrences
粉fěn
0.65310,603 co-occurrences
丽lì
0.5575,092 co-occurrences
绯fēi
0.552358 co-occurrences
缕lǚ
0.543347 co-occurrences
爱ài
0.4793,326 co-occurrences
拧níng
0.47379 co-occurrences
萝luó
0.471328 co-occurrences
绒róng
0.466328 co-occurrences
蕾lěi
0.4591,399 co-occurrences

Idioms & Chengyu (18)

克丝钳子kè sī qián ziHSK 7+

wire cutting pincers

phrase
螺丝起子luósī qǐziHSK 7+

screwdriver

noun
藕断丝连ǒu duàn sī lián

lit. lotus roots may break, but the fiber remains joined (idiom); lovers part, but still long for one another

phrase
千丝万缕qiānsīwànlǚHSK 7+

inexhaustible; linked in countless ways

phrase
丝绸之路Sīchóu zhī LùHSK 7+

Silk Road

丝毫不差sī háo bù chāHSK 7+

accurate to perfection (idiom); precise to the finest detail

phrase
丝竹管弦sī zhú guǎn xiánHSK 7+

(lit.) string and wind instruments (idiom); (fig.) traditional Chinese ensemble music

phrase
吐丝自缚tǔ sī zì fùHSK 7+

to spin a cocoon around oneself (idiom); enmeshed in a trap of one's own devising; hoist with his own petard

phrase
纹丝不动wénsībùdòngHSK 7+

to not move a single bit

phrase
无丝分裂wúsī fēnlièHSK 7+

amitosis

noun
严丝合缝yánsīhéfèngHSK 7+

to fit together perfectly; to join tightly; to dovetail

phrase
一丝不苟yīsībùgǒuHSK 7+

to be scrupulous about every detail; to not be the least bit negligent; to not overlook any detail

verb

Showing 12 of 18 idioms containing 丝.

Example Sentences

AI-Generated

丝字虽然难写,但意思很有趣。

sī zì suī rán nán xiě , dàn yì sī hěn yǒu qù .

The character for "silk" may be difficult to write, but its meaning is quite interesting.

東方日報Feb 2026

...抚地八日湿 元宵雷动云掩月 惊蛰前后飘轻丝

. . . fǔ dì bā rì shī yuán xiāo léi dòng yún yǎn yuè jīng 蛰 qián hòu piāo qīng sī

... Eight days of wet Lantern Festival, thunder and clouds cover the moon, and light silk flutters before and after

LtnFeb 2026

...旅毒杀2男!韩国蛇蝎美人照片曝光 IG粉丝暴涨50倍

. . . lǚ dú shā 2 nán ! hán guó shé 蝎 měi rén zhào piàn pù guāng I G fěn sī bào zhǎng 5 0 bèi

... Brigade poisoned 2 men! Korean femme fatale photos exposed IG fans soared 50 times

LtnFeb 2026

王菲连两年春晚开唱!粉丝敲碗办演唱会 宽姐松口了

wáng 菲 lián liǎng nián chūn wǎn kāi chàng ! fěn sī qiāo wǎn bàn yǎn chàng huì kuān jiě sōng kǒu le

Faye Wong has been singing at the Spring Festival Gala for two consecutive years! Fans knocked on the bowl to hold a concert, and Sister Kuan let go

BastillepostFeb 2026

周吉佩新春团拜 三地粉丝聚首一堂庆祝

zhōu jí pèi xīn chūn tuán bài sān dì fěn sī jù shǒu yī táng qìng zhù

Zhou Jipei's New Year group visit Fans from the three places gathered together to celebrate

公視新聞網 PnnFeb 2026

氦气流动异常 阿提米丝2号绕月再推迟

氦 qì liú dòng yì cháng ā tí mǐ sī 2 hào rào yuè zài tuī chí

Helium flow is abnormal Artemis 2 orbit the moon and is postponed again

Tatoeba

汤姆和露丝订婚了。

Tāngmǔ hé Lùsī dìnghūn le.

Tom is engaged to Ruth.

Tatoeba

简的美丽丝毫不逊色于她母亲。

Jiǎn de měilì sīháo bù xùnsè yú tā mǔqīn.

Jane is no less beautiful than her mother.

Tatoeba

他消失了,不留一丝踪迹。

Tā xiāoshī le, bù liú yī sī zōngjì.

He vanished without a trace.

Tatoeba

我是足球的忠实粉丝。

Wǒ shì zúqiú de zhōngshí fěnsī.

I'm a big football fan.

Character Family

Homophones — Characters pronounced sī

Frequently Asked Questions

What does 丝 (sī) mean in Chinese?
丝 (sī) primarily means "silk." It is classified as HSK Level 7-9, making it an expert-level character. It ranks #1025 in character frequency.
How many strokes does 丝 have?
丝 is written with 5 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 丝?
The radical associated with 丝 is 一 (one). This radical appears in many characters related to one.
What are the components of 丝?
丝 is composed of: 一 (structural). Understanding the components helps with both memorization and recognizing related characters.
What are common words containing 丝?
Common words with 丝 include: 粉丝 (fěn sī, "bean vermicelli"); 丝毫 (sī háo, "the slightest amount or degree"); 丝绸 (sī chóu, "silk (cloth)"); 螺丝 (luó sī, "screw"); 爱丽丝 (ài lì sī, "(name) Alice"). There are over 102 compound words containing this character.
What characters sound the same as 丝 (sī)?
Several characters share the pronunciation sī: 斯 (Slovakia), 思 (to think, thought), 死 (to die), 四 (four), and 6 more. Context and tones help distinguish between them in speech and writing.
Is 丝 the same in simplified and traditional Chinese?
Yes, 丝 is written the same way in both simplified and traditional Chinese.

Practice writing 丝 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.