Writing Balance Rule: The enclosing tiger-stripe roof (虍) spans wide at the top, sheltering the lower component (𠂉 and 业 variant), keeping the center of gravity balanced and avoiding a top-heavy collapse.
Simplification Logic: The traditional form 虛 was simplified in modern Chinese by standardizing the lower-right component and smoothing out historical cursive influences into the current clean components.
1. Meaning
emptiness, void, hollow
abstract theory or guiding principlesempty or unoccupieddiffident or timidfalse or insincereweak or frail (of health)virtual (digital/network)in vain
Adjective / Noun / AffixNeutral#abstract concepts#state of being#health#technology
Sample Usage
虚心使人进步，骄傲使人落后。
xū xīn shǐ rén jìn bù, jiāo ào shǐ rén luò hòu.
An open mind makes one progress, while pride makes one lag behind.
虚拟现实
xū nǐ xiàn shí
Virtual reality
2. Sound
/[ɕy˴⁵⁵]/Tone: 55
虚
xūxu1
|
++
¯(55)
=xū
Initial Consonant
x
Type: Alveolo-Palatal Fricative
Sounds like: sh sound pronounced forward against the teeth
Unaspirated
Airflow Tactile Test: Hissing friction with lips stretched wide in a smile.
Tongue & Mouth Position: Tongue tip down behind lower front teeth, blade raised close to the alveolar ridge.
Final Rhyme
u
Vowel Group: -v vowel group
Sounds like: rounded ee sound (like French 'u')
Note: Written as 'u', pronounced as rounded 'ü' [y].
Mouth Shape Guide: Pronounce as standalone vowel 'ü'.
Common Learner Trap: Keep vowel quality steady across all 4 tone contours.
Tone
T1 (55)
5 → 5 (55)
1st Tone (High-Flat)
Tone Pitch & Cadence: Tone 1 is a steady, high-pitched note, similar to the flat pitch of a musical tuning fork or the word 'blue' shouted at a constant high level.
👂
Listening trap: Mistaking it for xiū (休) because of the similar initial consonant; remember that xū has the rounded 'ü' vowel rather than the 'iu' sound.
👋
Physical Tone Gesture: A flat, high horizontal hand motion or keeping your voice at an even, high pitch without dipping or rising, like a musical note held steady.
3. Writing
Topology: Semi-enclosure · Strokes: 11 strokes
Writing Balance Rule: The enclosing tiger-stripe roof (虍) spans wide at the top, sheltering the lower component (𠂉 and 业 variant), keeping the center of gravity balanced and avoiding a top-heavy collapse.
Simplification Logic: The traditional form 虛 was simplified in modern Chinese by standardizing the lower-right component and smoothing out historical cursive influences into the current clean components.
4. Components
Radical虍 · Tiger stripe radical (tiger stripes or tiger hide)
Semantic Clue (形旁):虍 (Provides the conceptual background of a large, hollow cave or tiger lair.)
Phonetic Clue (声旁):丘 (original sound: qiū)
A tiger lair (虍) where the hill (丘) has been hollowed out, leaving complete emptiness inside.
虍 Tiger skin / roof canopy
丘 Hill or mound
Phonetic Family (形声字家族)
7· Phonetic Root: 虚 (xū)
5. History
Liushu category: Phono-semantic (形声)
Origin: Originally combining the tiger roof (虍) suggesting a big cavernous space and 丘 (mound) suggesting height and emptiness, depicting a vast, empty space or hill.
Semantic Evolution: From an original physical sense of a great hill or empty expanse, it generalized into abstract meanings of emptiness, falseness, frailty, and eventually virtual/digital realms.
In traditional Chinese philosophy, 虚 (emptiness) represents Daoist concepts of receptivity and the void from which creation emerges.
6. Sinosphere
🇻🇳
Sino-Vietnamese
hư
corresponds to ngang tone
🇯🇵
Kanji (Japanese)
On: キョ (kyo) / Kun: むな.しい (munashii)
🇰🇷
Hanja (Korean)
허
Sound Shift Bridge: The initial x- in Mandarin often corresponds to h- or k- in Sino-Xenic readings (e.g., Japanese kyo, Vietnamese hư).
7. Memory
Vivid Mnemonic Story
Imagine a fierce tiger guarding a mound (丘) under a rocky cave roof (虍). When you walk inside, you find it completely empty (虚)—there's nothing there except echoes!
Phonetic Family (形声字家族)
嘘
xūto exhale, hiss, or lieAdds the mouth radical (口) on the left, representing blowing air or sighing.
墟
xūruins, marketplaceAdds the earth radical (土) on the left, referring to ruined mounds of earth.
觑
qùto peer at, watchAdds the eye component (見) on the right, meaning to peek into empty spaces.
Lookalikes & Traps (形近字)
虎(hǔ)
虎 is just the tiger with legs (儿), whereas 虚 includes the hill component inside the tiger roof.
丘(qiū)
丘 is just the mound alone without the tiger roof canopy.
8. Mastery
Active Recall Challenge
我们要保持[___]的心态，虚心向他人学习。
Clue: xū xīn
Common Learner Pitfall
Confusing the character structure with 虎 (tiger) and forgetting the internal mound element.
Memory Prompts
Recognition: When you see 虚, what are two main contrasting meanings it can have?
Production: How do you write the character for 'emptiness/virtual' (xū) using the tiger roof radical?
Real-World Video Context
Watch authentic native speakers pronounce and explain this word in real-world YouTube videos.
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虚xūemptiness, void, virtual
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