透 (tòu): penetrate, thorough

透 (tòu) is a Chinese character meaning “penetrate, thorough.” Classified as HSK Level 6 (HSK 3.0 Standard, CLEC 2022), it is composed of 辶 (semantic) and 秀 (phonetic). It ranks #1076 in character frequency (SUBTLEX-CH corpus).

Etymologically derived, 透 walk. Its radical form 辶 (walk) appears in many related characters such as 边 (biān, side), 过 (guò, to pass, past), 还 (hái, still, return).

Spoken pronunciation

Definitions

  1. penetrate, thorough

Etymology & Origin

透

pictophoneticwalk

Decomposition: ⿺辶秀 (layout: surround-from-lower-left)

Stroke Order

1
2
3
4
5
6
7
8
9
10

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

Words & Compounds

HSK Vocabulary with 透

WordPinyinMeaningHSK
透露verbtòu lùto leak out6
透过verbtòu guòto pass through6
透明adjectivetòu míngtransparent6

Common Compounds

WordPinyinMeaning
透顶adverbtòu dǐngout-and-out
透气verbtòu qìto flow freely (of air)
渗透verbshèn tòu(lit. and fig.) to permeate
看透verbkàn tòuto understand thoroughly
穿透verbchuān tòuto penetrate
透视nountòu shì(drawing and painting) perspective
透支verbtòu zhī(banking) to overdraw
透彻tòu chèpenetrating
透漏tòu lòuto divulge
熟透shú tòucompletely ripe
透风verbtòu fēngto let air pass through
浸透verbjìn tòuto soak
透镜nountòu jìnglens (optics)
透明度nountòu míng dùtransparency
透明胶tòu míng jiāoScotch tape
85
Total compounds
46
As first character
31
As last character
24
As middle character

透 appears in 85 compound words: 46 as the first character, 31 as the last, and 24 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 透 in natural Chinese text, ranked by NPMI (Normalized Pointwise Mutual Information) — a statistical measure of association strength.

渗shèn
0.6394,958 co-occurrences
露lù
0.63950,818 co-occurrences
明míng
0.45526,780 co-occurrences
穿chuān
0.4546,478 co-occurrences
镜jìng
0.4332,374 co-occurrences
漏lòu
0.4141,466 co-occurrences
可kě
0.37818,908 co-occurrences
过guò
0.3779,070 co-occurrences
剔tī
0.374250 co-occurrences
魔mó
0.35814 co-occurrences

Idioms & Chengyu (3)

密不透风mì bù tòu fēngHSK 6+

sealed off; impenetrable

phrase
透视画法tòu shì huà fǎHSK 6+

perspective drawing

phrase
玲珑剔透línglóngtītòu

carved delicately and exquisitely; witty, clever, smart

phrase

Example Sentences

AI-Generated

这个问题分析得很透彻,找到了根本原因。

Zhè gè wèntí fēnxī de hěn tòuchè, zhǎodào le gēnběn yuányīn.

This issue has been thoroughly analyzed, and the root cause has been found.

UdnnewsindexFeb 2026

經典賽/徐若熙笑嘻嘻要回台灣了 透露近況越來越好

經 diǎn 賽 xú ruò xī xiào 嘻 嘻 yāo huí tái 灣 le tòu lù jìn 況 yuè 來 yuè hǎo

Classic Tournament/Xu Ruoxi Smiles as She Returns to Taiwan, Reveals Her Condition Is Improving

Hk01.comFeb 2026

路透:中美代表團24日瑞士會晤 討論核軍控問...

lù tòu zhōng měi dài biǎo 團 rì ruì shì 會 wù 討 論 hé 軍 kòng 問 . . .

Reuters: U.S.-China delegations to meet in Switzerland on the 24th to discuss nuclear arms control issues...

Investing 香港Feb 2026

拉加德稱歐洲可透過應用而非創新在人工智能領域取勝

lā jiā dé 稱 歐 zhōu kě tòu 過 應 yòng ér fēi 創 xīn zài rén gōng zhì néng 領 yù qǔ 勝

Lagarde says Europe can win in artificial intelligence through application rather than innovation

UdnnewsindexFeb 2026

連槓龜都有玄機?她買刮刮樂摸透「1規律」 秒中萬元大獎

連 槓 龜 dōu yǒu xuán 機 ? tā 買 guā guā 樂 mō tòu 規 lǜ miǎo zhōng 萬 yuán dà 獎

Even losing streaks hold secrets? She cracked the "one pattern" of scratch-off tickets and instantly won a ten-thousand-dollar jackpot.

WorldjournalFeb 2026

威科夫接受專訪透露 奉川普指示會晤伊朗前王儲

wēi kē fū jiē shòu 專 訪 tòu lù fèng chuān pǔ zhǐ shì 會 wù yī lǎng qián wáng 儲

Witkoff's interview reveals he met with Iran's former crown prince at Trump's behest.

Tatoeba

他透露了我的秘密。

Tā tòulù le wǒ de mìmì.

He disclosed my secret.

Tatoeba

透过薄雾,我隐约看见了我的未来。

Tòuguò bówù, wǒ yǐnyuē kànjiàn le wǒ de wèilái.

In looking through the mist, I caught a glimpse of my future.

Tatoeba

神话让我们能透悉古文明。

Shénhuà ràng wǒmen néng tòu xī gǔwénmíng.

The myth offers insights into the ancient civilization.

Tatoeba

我遇上了阵雨被淋得全身湿透。

Wǒ yùshàng le zhèn yǔ bèi lín de quánshēn shītòu.

I was caught in a shower and got drenched to the skin.

Character Family

Semantic Family — Characters sharing the 辶 (walk) component

Homophones — Characters pronounced tòu

Frequently Asked Questions

What does 透 (tòu) mean in Chinese?
透 (tòu) primarily means "penetrate, thorough." It is classified as HSK Level 6, making it an advanced character. It ranks #1076 in character frequency.
What's the difference between 透 and 绣?
透 (tòu) and 绣 (xiù) are often confused. confusable. The key distinguishing feature: 辶 vs 纟 (same 秀 component).
How many strokes does 透 have?
透 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 透?
The radical associated with 透 is 辶 (walk). This radical appears in many characters related to walk.
What are the components of 透?
透 is composed of: 辶 (semantic), 秀 (phonetic). Its IDS decomposition is ⿺辶秀 with a surround-from-lower-left layout. Understanding the components helps with both memorization and recognizing related characters.
What are common words containing 透?
Common words with 透 include: 透露 (tòu lù, "to leak out"); 透过 (tòu guò, "to pass through"); 透顶 (tòu dǐng, "out-and-out"); 透明 (tòu míng, "transparent"); 透气 (tòu qì, "to flow freely (of air)"). There are over 85 compound words containing this character.
What characters sound the same as 透 (tòu)?
Several characters share the pronunciation tòu: 头 (head), 投 (to throw, to invest), 偷 (to steal). Context and tones help distinguish between them in speech and writing.
Is 透 the same in simplified and traditional Chinese?
Yes, 透 is written the same way in both simplified and traditional Chinese.

Practice writing 透 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.