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虱 — pronunciations, definitions, and tags
HanziPinyinEnglishTags
shībug, louse, parasiten, 8 strokes, radical 虫, rank #21340, Hard
shī(shi1) T1
  1. 1bug, louse, parasite
Listen to the audio pronunciation 3 times to gain XP
March 24, 2026
shī(shi1)

The character 虱 (shī) refers to a type of small parasitic insect, specifically a louse. Commonly used to describe lice found on humans or animals, it can also imply a nuisance or an undesirable pest in a broader context.

Strokes8RadicalFrequency#21340DifficultyHard
Cultural Note

In traditional Chinese medicine, the presence of 虱 is often linked to poor hygiene, and there are various herbal remedies mentioned in historical texts for treating lice infestations.

Memory Tip

Imagine a tiny bug (虱) that is so small it's like a 'sheep in disguise' (shī sounds like 'sheep'). The '虫' radical suggests it's an insect, and you can picture a louse hiding in the wool of a sheep, causing irritation.

Meanings of 虱

shī(shi1)
1bug, louse, parasite
Exercise 1 of 2

Listen & Choose the Meaning

Choose the correct answer:

About 虱

Simplified
8Strokes
Radical
名词míngcínoun (n.)Part of Speech
#—Frequency Rank

Podcast: 虱

JasonAmy

Podcast:

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AI Study Notes for 虱

Quick Contrast

虱 (louse) vs 蚤 (flea) — choose 虱 when referring specifically to lice, while 蚤 refers to fleas, which are different types of parasites.

Memory Mnemonic

Imagine a tiny bug (虱) that is so small it's like a 'sheep in disguise' (shī sounds like 'sheep'). The '虫' radical suggests it's an insect, and you can picture a louse hiding in the wool of a sheep, causing irritation.

Usage Notes

This word is generally used in informal contexts related to hygiene or discussions about pests. A common mistake is to confuse 虱 with similar insects; be sure to specify that it refers specifically to lice. It's often used in compound words like 虱子 (shīzi) to refer to lice in a more colloquial manner.

HSK Study Tips

While 虱 is not part of the HSK vocabulary, it may appear in more advanced reading materials. Students should focus on recognizing its radicals and understanding related terms about insects and hygiene as they progress.

Cultural Note

In traditional Chinese medicine, the presence of 虱 is often linked to poor hygiene, and there are various herbal remedies mentioned in historical texts for treating lice infestations.

Common Mistakes

Learners often confuse 虱 with other similar insects like 蚊 (wén) meaning 'mosquito'. Remember that 虱 specifically refers to lice, not mosquitoes or other bugs.

AI-enhanced 2026-03-24

Pronunciation of 虱

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Etymology of 虱

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

insect

Semantic (meaning)
+
Phonetic (sound)
Learn more about Phono-semantic (形声字) characters
Exercise 1 of 1

Character Formation Type

What type of character formation is 虱?

Decomposition of 虱

IDS Structure⿹乙⿱?虫
Full Character
=
yi3
enclosing
chong2
top
Exercise 1 of 2

Identify the Components

Which of these is a component of 虱?

Write 虱

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

Write correctly 3 times to earn XP

Grammar Patterns of 虱

虱 functions as a noun — it names a person, place, thing, or concept. Place it as a subject before the verb (主+谓) or as an object after the verb (谓+宾). Most Chinese nouns require a measure word between the number and the noun (e.g. 一个/三本). The example sentences below show it in action, with practice buttons (Listen, Practice Writing, Practice Speaking) on every line.

Exercise 1 of 3

Complete the Sentence

“那是一种粉____,对吗?”——“是的,是粉虱。”

"That's a type of whitefly, is it?"— 'Yes. it is a whitefly.'

Example Sentences for 虱 (3)

Listen to all sentences once to receive XP
1
“那是一种粉虱,对吗?”——“是的,是粉虱。”

“ “ nà shì yī zhǒng fěn, shī ,?”——“ duì ma, ?”——“ shì de。”

"That's a type of whitefly, is it?"— 'Yes. it is a whitefly.'
2
木虱会侵害活体植物并啃咬它们的茎。

mù shī huì qīn hài huó tǐ zhí wù bìng kěn yǎo tā mén de jīng。

Woodlice attack living plants and gnaw at the stems.
3
头上生虱子并不说明不讲个人卫生。

tóu shàng shēng shī zǐ bìng bù shuō míng bù jiǎng gè rén wèi shēng。

Infection with head lice is no reflection on personal hygiene.

Cultural Notes for 虱

🏮Cultural insight

In traditional Chinese medicine, the presence of 虱 is often linked to poor hygiene, and there are various herbal remedies mentioned in historical texts for treating lice infestations.

Word Family of 虱

Words Containing This Character6
虱子louse (Pediculus humanus)蝨子
shīlouse
塘虱catfish (family Clariidae)
虱目鱼milkfish (Chanos chanos)虱目魚
头虱head lice頭蝨
虱多不痒Troubles never come singly.蝨多不癢
Exercise 1 of 4

Compound Meaning

What does 虱子 mean?

Frequently Asked Questions about 虱

Common phrases include 虱子 (shīzi) for 'lice' and 虱病 (shībìng) which means 'louse infestation'.