Writing Balance Rule: The left side (sickness radical 疒) forms a protective shelter canopy over the right side (炎), which must be balanced evenly underneath and to the right without crowding.
1. Meaning
phlegm, spittle
mucus coughed up from the respiratory tract
NounNeutral#medicine#anatomy#health
Sample Usage
他咳嗽得厉害，还带有很多痰。
tā késou de lìhai, hái dài yǒu hěn duō tán.
He is coughing badly and bringing up a lot of phlegm.
清痰止咳
qīng tán zhǐ ké
clear phlegm and relieve cough
2. Sound
/[tʰan³⁵]/Tone: 35
痰
tántan2
|
++
´(35)
=tán
Build the syllable
Step-by-step blending
tan
Tone mark placement: Tone mark sits on "a" per main-vowel priority (a > e > o; in -iu/-ui the mark takes the second vowel).
Initial Consonant
t
Type: Aspirated Alveolar
Sounds like: t sound as in English 'top'
Aspirated
Airflow Tactile Test: Explosive puff of breath! Tissue held before mouth MUST flutter.
Tongue & Mouth Position: Tongue tip touches the alveolar ridge behind the upper front teeth, releasing a burst of air.
Final Rhyme
an
Vowel Group: -a vowel group
Sounds like: -an rhymes with 'on' in 'con' or 'an' in 'tan'
Mouth Shape Guide: Pronounce as standalone vowel 'ahn'.
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 like a questioning tone in English, e.g., 'What?' or 'Really?'
Sandhi: When followed by another Tone 2, it shifts slightly, though standard tone sandhi rules apply primarily to Tone 3.
👂
Listening trap: Confusing the rising Tone 2 (tán) with Tone 1 (tān), Tone 3 (tǎn), or Tone 4 (tàn). Pay close attention to the upward inflection.
👋
Physical Tone Gesture: Make a rising hand gesture moving upward from chest level to eye level, matching the upward pitch of Tone 2.
3. Writing
Topology: Left-right · Strokes: 13 strokes
Writing Balance Rule: The left side (sickness radical 疒) forms a protective shelter canopy over the right side (炎), which must be balanced evenly underneath and to the right without crowding.
4. Components
Radical疒 · Sickness radical (illness, disease, body conditions)
Semantic Clue (形旁):疒 (Indicates that this relates to an illness or bodily condition (mucus/phlegm).)
Phonetic Clue (声旁):炎 (original sound: yán / tán)
The sickness radical (疒) on the left pairs with the double-fire character for inflammation (炎) on the right, representing an inflamed, sick condition in the body that produces phlegm.
疒 Sickness or body ailment
炎 Inflammation / fire (provides phonetic clue and sense of heat/fever)
Phonetic Family (形声字家族)
12· Phonetic Root: 炎 (yán)
5. History
Liushu category: Phono-semantic (形声)
Origin: Combined from the disease signific (疒) and the phonetic/semantic component 炎 (representing heat and inflammation), indicating internal heat or illness causing mucus buildup.
Semantic Evolution: Originally referred to bodily fluids associated with sickness or inflammation, narrowing down specifically to phlegm and spittle in modern usage.
Traditional Chinese Medicine places great emphasis on dampness and phlegm (痰) as root causes of many internal illnesses.
6. Sinosphere
🇻🇳
Sino-Vietnamese
đàm
Mandarin rising tone corresponds closely to Vietnamese hỏi/ngã or rising variants depending on historical strata, here matching 'đàm'.
🇯🇵
Kanji (Japanese)
On: タン (tan)
🇰🇷
Hanja (Korean)
담
Sound Shift Bridge: The '-an' final and initial 't-' remain very stable across Chinese and its borrowings in Japanese (tan) and Korean (dam/tam).
7. Memory
Vivid Mnemonic Story
When sickness (疒) combines with double fire/inflammation (炎), your throat gets so hot and inflamed that you cough up thick phlegm (tán).
Phonetic Family (形声字家族)
炎
yánflame, inflammationPhonetic Core (声旁)
谈
tánto talk / to speak / to chat+ 讠 (speech)
淡
dànlight in color, dilute, mild, tasteless+ 氵 (water)
谈 has the speech radical (讠) because talking involves words, whereas 痰 has the sickness radical (疒) because phlegm involves illness.
淡(dàn)
淡 has water (氵) because it means watery or diluted, whereas 痰 has sickness (疒).
8. Mastery
Active Recall Challenge
他感冒了，喉咙里有很多[___]。
Clue: tán
Common Learner Pitfall
Confusing 痰 (tán, phlegm) with 谈 (tán, to talk) due to the identical pronunciation and tone, missing the crucial difference between the sickness radical and speech radical.
Memory Prompts
Recognition: What does the character 痰 mean, and what do its left and right components signify?
Production: How do you write the character for 'phlegm' (tán), combining the sickness radical and the inflammation component?
Real-World Video Context
Watch authentic native speakers pronounce and explain this word in real-world YouTube videos.
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痰tánphlegm
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