朽 (xiǔ): rotten

朽 (xiǔ) is a Chinese character meaning “rotten.” Classified as HSK Level 7-9 (HSK 3.0 Standard, CLEC 2022), it is composed of 木 (structural) and 丂 (structural). It ranks #2448 in character frequency (SUBTLEX-CH corpus).

Etymologically derived, 朽 the wood of a dying 丂 tree 木. Its radical form 木 (tree) appears in many related characters such as 本 (běn, (bound form) root), 机 (jī, machine, opportunity), 条 (tiáo, strip).

Spoken pronunciation

Definitions

  1. rotten

Etymology & Origin

朽

ideographicThe wood of a dying 丂 tree 木

Decomposition: ⿰木丂 (layout: left-right)

Stroke Order

1
2
3
4
5
6

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

Words & Compounds

Common Compounds

WordPinyinMeaning
腐朽verbfǔ xiǔrotten
不朽verbbù xiǔto last forever
永垂不朽verbyǒng chuí bù xiǔeternal glory
朽木nounxiǔ mùrotten wood
老朽adjectivelǎo xiǔdecrepit and behind the times
朽烂verbxiǔ lànrotten
化腐朽为神奇phrasehuà fǔ xiǔ wéi shén qílit. to change something rotten into something magical (idiom)
三不朽sān bù xiǔthe three imperishables, three ways to distinguish oneself that aren't forgotten by history: through one's virtue 立德[...
朽木不可雕proverbxiǔ mù bù kě diāolit. rotten wood cannot be carved (idiom)
朽坏verbxiǔ huàirotten
衰朽adjectiveshuāi xiǔdecaying
朽蠹xiǔ dùto decay and be eaten by worms etc
枯朽adjectivekū xiǔwithered and rotten
颓朽tuí xiǔdecaying
14
Total compounds
36
As first character
57
As last character
7
As middle character

朽 appears in 14 compound words: 36 as the first character, 57 as the last, and 7 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 朽 in natural Chinese text, ranked by NPMI (Normalized Pointwise Mutual Information) — a statistical measure of association strength.

腐fǔ
0.6111,555 co-occurrences
垂chuí
0.550870 co-occurrences
枯kū
0.483158 co-occurrences
木mù
0.4471,259 co-occurrences
烂làn
0.42856 co-occurrences
永yǒng
0.427784 co-occurrences
蛀zhù
0.41012 co-occurrences
摧cuī
0.391116 co-occurrences
糟zāo
0.38546 co-occurrences
髦máo
0.37912 co-occurrences

Idioms & Chengyu (1)

永垂不朽yǒngchuíbùxiǔHSK 7+

to be immortal; to enjoy eternal glory

verb

Example Sentences

中国新闻网·文化Sep 2026

黑色填土与棺椁朽痕之间的色差极微弱,稍纵即逝,用肉眼分辨极为困难。

hēi sè tián tǔ yǔ guān 椁 xiǔ hén zhī jiān de sè chā jí wēi ruò , shāo zòng jí shì , yòng ròu yǎn fēn biàn jí wéi kùn nán .

The color difference between the black fill soil and the decay marks on the coffin and sarcophagus is extremely subtle and fleeting, making it extremely difficult to distinguish with the naked eye.

中国新闻网·文化Jun 2026

但历经千百年岁月,不少文物呈现糟朽破损的情况,如何让它们继续流传后世?

dàn lì jīng qiān bǎi nián suì yuè , bù shǎo wén wù chéng xiàn zāo xiǔ pò sǔn de qíng kuàng , rú hé ràng tā men jì xù liú chuán hòu shì ?

However, after thousands of years, many cultural relics have become decayed and damaged. How can we ensure they are preserved for future generations?

UdnnewsindexApr 2026

...屋顶突塌!男受困50分钟脱困 初判木梁腐朽酿祸

. . . wū dǐng tū tā ! nán shòu kùn 5 0 fēn zhōng tuō kùn chū pàn mù liáng fǔ xiǔ niàng huò

...Roof Collapses! Man Trapped for 50 Minutes Before Being Rescued; Preliminary Findings Point to Rotten Wooden Beams as the Cause

Tatoeba

不共戴天的敌人是不朽的朋友。

Bùgòngdàitiān de dírén shì bù xiǔ de péngyou.

Mortal enemies are immortal friends.

Tatoeba

问题不是政治不纯洁,而是整个政治博弈已经腐朽。

Wèntí bù shì zhèngzhì bù chúnjié, érshì zhěnggè zhèngzhì bóyì yǐjīng fǔxiǔ.

The trouble is not with impure politics, but that the whole game of politics is rotten.

Character Family

Homophones — Characters pronounced xiǔ

Frequently Asked Questions

What does 朽 (xiǔ) mean in Chinese?
朽 (xiǔ) primarily means "rotten." It is classified as HSK Level 7-9, making it an expert-level character. It ranks #2448 in character frequency.
How many strokes does 朽 have?
朽 is written with 6 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 朽?
The radical associated with 朽 is 木 (tree). This radical appears in many characters related to tree.
What are the components of 朽?
朽 is composed of: 木 (structural), 丂 (structural). Its IDS decomposition is ⿰木丂 with a left-right layout. Understanding the components helps with both memorization and recognizing related characters.
What are common words containing 朽?
Common words with 朽 include: 腐朽 (fǔ xiǔ, "rotten"); 不朽 (bù xiǔ, "to last forever"); 永垂不朽 (yǒng chuí bù xiǔ, "eternal glory"); 朽木 (xiǔ mù, "rotten wood"); 老朽 (lǎo xiǔ, "decrepit and behind the times"). There are over 14 compound words containing this character.
What characters sound the same as 朽 (xiǔ)?
Several characters share the pronunciation xiǔ: 修 (to decorate), 休 (to rest), 秀 ((bound form) refined), 袖 (sleeve), and 4 more. Context and tones help distinguish between them in speech and writing.
Is 朽 the same in simplified and traditional Chinese?
Yes, 朽 is written the same way in both simplified and traditional Chinese.

Practice writing 朽 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.