Writing Balance Rule: The outer roof enclosure (宀) must spread gracefully over the inner structure (牛), keeping the interior balanced without touching the outer walls.
It is never too late to mend (lit. to patch the sheepfold after losing sheep).
2. Sound
/[laʊ̯³⁵]/Tone: 35
牢
láolao2
|
++
´(35)
=láo
Initial Consonant
l
Type: Alveolar Lateral
Sounds like: English l sound
Unaspirated
Airflow Tactile Test: Air flows freely around both sides of tongue.
Tongue & Mouth Position: Tongue tip pressed against the alveolar ridge behind the upper front teeth.
Final Rhyme
ao
Vowel Group: -a vowel group
Sounds like: rhymes with 'ow' in cow
Mouth Shape Guide: Pronounce as standalone vowel 'ow'.
Common Learner Trap: Keep vowel quality steady across all 4 tone contours.
Tone
T2 (35)
3 → 5 (35)
2nd Tone (Mid-Rising)
Tone Pitch & Cadence: Tone 2 rises from middle pitch to high pitch, identical to the upward inflection of a surprised English question like 'Really?'
Sandhi: When followed by another Tone 3 syllable, láo shifts to a rising tone similar to Tone 2.
👂
Listening trap: Confusing the rising tone (Tone 35) with the dipping tone (Tone 214) or mistaking the vowel ending for an 'ao' vs 'ou' blend.
👋
Physical Tone Gesture: A rising hand gesture starting from mid-chest and moving upward and rightward, matching a questioning 'What?' in English.
3. Writing
Topology: Full enclosure · Strokes: 7 strokes
Writing Balance Rule: The outer roof enclosure (宀) must spread gracefully over the inner structure (牛), keeping the interior balanced without touching the outer walls.
4. Components
Radical宀 · Roof radical (roof, shelter, building)
Semantic Clue (形旁):牛 (denotes an animal (ox/cow))
An animal (牛) kept securely under a roof (宀) creates an enclosure, pen, or sturdy shelter.
宀 roof or shelter
牛 ox, cow, or livestock
5. History
Liushu category: Phono-semantic (形声)
Origin: Originally depicted an ox (牛) inside a roofed enclosure or pen (宀), signifying a place where livestock is safely confined.
Semantic Evolution: From an animal pen to a secure enclosure, then generalized to mean firm, sturdy, and eventually a prison for humans.
Ancient agricultural societies relied heavily on sturdy pens to protect valuable livestock from predators.
6. Sinosphere
🇻🇳
Sino-Vietnamese
lao
Corresponds to the Vietnamese level/rising tone structures.
🇯🇵
Kanji (Japanese)
On: ロウ / Kun: ほしいまま
🇰🇷
Hanja (Korean)
뇌
7. Memory
Vivid Mnemonic Story
An ox (牛) safely locked under a sturdy roof (宀) is kept so FIRM and secure inside its pen (牢) that it could never escape.
Phonetic Family (形声字家族)
涝
làowaterlogged, floodAdds the water radical (氵) on the left to indicate flooding.
劳
láolabor, toilSimplified form replacing the bottom structure with force (力).
Lookalikes & Traps (形近字)
劳(láo)
劳 uses the strength/force radical (力) at the bottom for labor, whereas 牢 uses an ox (牛) under a roof for a pen or prison.
8. Mastery
Active Recall Challenge
我们要把绳子系[___]一点。
Clue: láo
Common Learner Pitfall
Confusing the character structure with 劳 (láo - labor) due to similar pinyin and visual components.
Memory Prompts
Recognition: What does an ox (牛) under a roof (宀) signify?
Production: How do you write the word for 'firm/sturdy' (láo) using roof and ox components?
Real-World Video Context
Watch authentic native speakers pronounce and explain this word in real-world YouTube videos.
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牢láofirm, sturdy, prison
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