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蠹 — pronunciations, definitions, and tags
HanziPinyinEnglishTags
蠹dùmoth, bookworm; moth-eaten, worm-eatenn, 24 strokes, radical 虫, rank #53637, Very Hard
蠹dùinsect that eats into books, clothing etcunknown, 24 strokes, radical 虫, rank #53637, Very Hard
dù(du4) T4
  1. 1moth, bookworm; moth-eaten, worm-eaten
  2. 2insect that eats into books, clothing etc
Listen to the audio pronunciation 3 times to gain XP
March 24, 2026

蠹dù(du4)

The character 蠹 (dù) refers to insects, particularly those that damage materials such as books or clothing, like bookworms or moths. It is often used in a metaphorical sense to describe something that is deteriorating or becoming less valuable due to neglect or damage.

Strokes24Radical虫Frequency#53637DifficultyVery Hard
Cultural Note

In Chinese literature, 蠹 is often used to symbolize decay or the loss of value, reflecting the importance of preserving knowledge and materials. This connects to the cultural reverence for books and education in Chinese society.

Memory Tip

Imagine a pesky moth (蠹) munching on your favorite book. The character has the 'insect' radical 虫 at the bottom, which signifies it relates to bugs. The pronunciation 'dù' rhymes with 'do', as in 'do keep your books safe from moths!'

Meanings of 蠹

dù(du4)
1moth, bookworm; moth-eaten, worm-eaten
2insect that eats into books, clothing etc
Exercise 1 of 2

Listen & Choose the Meaning

Choose the correct answer:

About 蠹

蠹Simplified
24Strokes
虫Radical
名词míngcínoun (n.)Part of Speech
#—Frequency Rank

Podcast: 蠹

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Podcast: 蠹

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AI Study Notes for 蠹

Quick Contrast

蛀 (zhù) - use 蠹 (dù) when referring specifically to insects that damage materials, whereas 蛀 (zhù) can refer to the act of boring or tunneling, often used in a broader context.

Usage Notes

蠹 is typically used in more formal or literary contexts rather than in everyday conversation. Be careful not to confuse it with other insect-related terms, and remember that it often carries a negative connotation of degradation.

HSK Study Tips

Although 蠹 is not part of the HSK vocabulary, understanding its components can help learners link it to other characters related to insects or damage. Focus on recognizing the insect radical 虫 and its implications in different contexts.

Common Mistakes

Learners might confuse 蠹 with other insect-related terms like 虫 (chóng), which generally means 'insect'. Always remember that 蠹 specifically refers to destructive insects, especially in a metaphorical sense.

AI-enhanced 2026-03-24

Pronunciation of 蠹

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Etymology of 蠹

Formation Typepictophonetic
六书 ClassificationPhono-semantic (形声字)~80-90% of characters
Memory Hint

insect

Semantic (meaning)虫
+
Phonetic (sound)橐
Learn more about Phono-semantic (形声字) characters

Jason Etymology Detective

Case file: 蠹

  1. 1The meaning half虫 carries the sense.
  2. 2The sound half橐 is there for the reading, not the meaning.
  3. 3The giveawayinsect
  4. 4On the record aspictophonetic.

Every clue here comes from the character's recorded structure — nothing is guessed.

Want the full history of 蠹? Jason searches the paleographic record, weighs the competing accounts and judges the popular story.

Charged once for this character — everyone reads it afterwards.
Exercise 1 of 1

Character Formation Type

What type of character formation is 蠹?

Decomposition of 蠹

IDS Structure⿱橐⿰虫虫
蠹Full Character
=
橐tuo2
top
虫chong2
left
虫chong2
right
Exercise 1 of 2

Identify the Components

Which of these is a component of 蠹?

How to say moth, bookworm; moth-eaten, worm-eaten in Chinese

“moth, bookworm; moth-eaten, worm-eaten” in Chinese is蠹dù

The character 蠹 (dù) refers to insects, particularly those that damage materials such as books or clothing, like bookworms or moths. It is often used in a metaphorical sense to describe something that is deteriorating or becoming less valuable due to neglect or damage.

When to use 蠹

蠹 is typically used in more formal or literary contexts rather than in everyday conversation. Be careful not to confuse it with other insect-related terms, and remember that it often carries a negative connotation of degradation.

蠹 or something close to it

蛀 (zhù) - use 蠹 (dù) when referring specifically to insects that damage materials, whereas 蛀 (zhù) can refer to the act of boring or tunneling, often used in a broader context.

What learners get wrong

Learners might confuse 蠹 with other insect-related terms like 虫 (chóng), which generally means 'insect'. Always remember that 蠹 specifically refers to destructive insects, especially in a metaphorical sense.

Write 蠹

蠹

Practice writing 蠹 stroke by stroke. Watch the animation to learn the stroke order, then try writing it yourself.

Write correctly 3 times to earn XP

Word Family of 蠹

Words Containing This Character12
蠹dùmoth-eaten
蠹虫moth蠹蟲
小蠹bark beetle (zoology)
蠹鱼silverfish蠹魚
巨蠹public enemy number one
户枢不蠹lit. a door hinge never becomes worm-eaten戶樞不蠹
苹果蠹蛾codling moth蘋果蠹蛾
蠹害to harm
木蠹蛾wood moth
书蠹book louse書蠹
蠹国害民to rob the state and hurt the people (idiom)蠹國害民
蠹弊abuse
Exercise 1 of 4

Compound Meaning

What does 蠹 mean?

Frequently Asked Questions about 蠹

It is pronounced as 'dù'.

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