Writing Balance Rule: The left component (亻) must be compressed and placed gracefully on the left half, leaving ample space for the right component (谷) to maintain structural balance.
1. Meaning
vulgar, coarse, or common
custom or social conventionsecular or worldly (opposed to religious/monastic)
Adjective / NounNeutral to literary#society#culture#ethics#lifestyle
Tongue & Mouth Position: Tip of the tongue rests lightly behind the lower front teeth, creating a narrow channel for air to hiss softly.
Final Rhyme
u
Vowel Group: -u vowel group
Sounds like: u rhymes with 'oo' in 'boot'
Mouth Shape Guide: Pronounce as standalone vowel 'oo'.
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 just like an English upward inflection when asking 'Really?' in disbelief.
Sandhi: When followed by another Tone 2, it shifts to a high rising pitch variant, though it is typically practiced as a full rising Tone 2.
👂
Listening trap: Do not confuse it with sū (Tone 1, high level) or sù (Tone 4, sharp drop). Ensure your voice rises clearly to avoid sounding like 'so' in English.
👋
Physical Tone Gesture: Start from a mid-low pitch in your vocal range and sweep your voice sharply upward, like asking a surprised question: 'Su?'
3. Writing
Topology: Left-right · Strokes: 9 strokes
Writing Balance Rule: The left component (亻) must be compressed and placed gracefully on the left half, leaving ample space for the right component (谷) to maintain structural balance.
4. Components
Radical亻 · Person radical (human, person)
Semantic Clue (形旁):亻 (Indicates human behavior, society, or people.)
Phonetic Clue (声旁):谷 (original sound: gǔ / sú sound alignment in old Chinese phonology)
A person (亻) standing in the valley (谷) among ordinary country folk, representing common, everyday, or worldly human customs.
亻 person
谷 valley / phonetic indicator
Phonetic Family (形声字家族)
8· Phonetic Root: 谷 (gǔ)
5. History
Liushu category: Phono-semantic (形声)
Origin: Combined from the person radical (亻) and the valley character (谷) which originally provided the phonetic loan and a sense of broad, low, or common ground.
Semantic Evolution: Originally referring to common people and everyday folk ways, it evolved to cover social customs (习俗), worldly/secular life (世俗), and eventually derogatory meanings like vulgar or coarse.
In Buddhist contexts, '俗' refers to the secular, mundane world outside of monastic temples.
6. Sinosphere
🇻🇳
Sino-Vietnamese
tục
Corresponds to the heavy glottal stop / sắc tone depending on historical entering tone categories.
🇯🇵
Kanji (Japanese)
On: ゾク (zoku) / スク (suku)
🇰🇷
Hanja (Korean)
속
Sound Shift Bridge: Shared East Asian cultural root character used in compound words relating to customs and secular life.
7. Memory
Vivid Mnemonic Story
A **person** (亻) living down in a deep **valley** (谷) follows simple, common, and sometimes **vulgar** country customs.
Phonetic Family (形声字家族)
浴
yùto batheWater (氵) plus valley (谷) = bathing in water.
欲
yùdesireValley (谷) plus wanting/desire elements = craving.
Lookalikes & Traps (形近字)
谷(gǔ)
Missing the person radical (亻) on the left; means 'valley'.
8. Mastery
Active Recall Challenge
这部电影内容非常通[___]，适合大众观看。
Clue: sú
Common Learner Pitfall
Confusing the tone (producing Tone 4 sù or Tone 1 sū) and forgetting that it carries multiple nuances ranging from neutral 'custom' to negative 'vulgar'.
Memory Prompts
Recognition: When you see '俗', what are its dual positive and negative connotations?
Production: How do you write the character for 'custom' or 'vulgar' starting with the person radical?
Real-World Video Context
Watch authentic native speakers pronounce and explain this word in real-world YouTube videos.
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俗súvulgar, conventional, custom, secular
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