Writing Balance Rule: Keep the horizontal strokes parallel and evenly spaced, ensuring the vertical center line anchors the entire structure symmetrically.
1. Meaning
again, once more
further, beyond this point of time(before an adjective) morethen (after something, and not until then)
AdverbNeutral#time#repetition#sequence
Sample Usage
再見！
zài jiàn!
Goodbye! (Lit. See [you] again!)
請再說一次。
qǐng zài shuō yī cì.
Please say it one more time.
2. Sound
/[tsaɪ̯⁵¹]/Tone: 51
再
zàizai4
|
++
`(51)
=zài
Initial Consonant
z
Type: Unaspirated Dental Sibilant
Sounds like: ts sound as in 'cats'
Unaspirated
Airflow Tactile Test: No air puff (sounds like 'ds' in English 'cards'). Tissue still.
Tongue & Mouth Position: Tongue tip touching the back of the lower front teeth, releasing a clean, crisp affricate without any puff of air.
Final Rhyme
ai
Vowel Group: -a vowel group
Sounds like: -ai rhymes with 'eye'
Mouth Shape Guide: Pronounce as standalone vowel 'eye'.
Common Learner Trap: Keep vowel quality steady across all 4 tone contours.
Tone
T4 (51)
5 → 1 (51)
4th Tone (High-Falling)
Tone Pitch & Cadence: Tone 4 starts high and plunges straight down, just like saying a sharp, definitive 'No!' or giving an abrupt command in English.
Sandhi: When followed by another Tone 4, zài maintains its sharp falling contour, but in rapid speech can slightly clip the terminal drop.
👂
Listening trap: Do not confuse it with zài (在 - at/in), which shares the exact same pronunciation and tone, but differs entirely in meaning and grammatical usage.
👋
Physical Tone Gesture: Tone 4 is a sharp chop downward with your hand, like bringing a karate chop from eye level down to your chest, matching the high-to-low dropping pitch.
3. Writing
Topology: Single character · Strokes: 6 strokes
Writing Balance Rule: Keep the horizontal strokes parallel and evenly spaced, ensuring the vertical center line anchors the entire structure symmetrically.
The character can be visually broken down into an upper roof/cover structure over sequential lower strokes, symbolizing a continuous cycle of repeating actions.
一 Top horizontal stroke
冂 Enclosure/border structure
5. History
Liushu category: Phono-semantic (形声)
Origin: Originally depicted two separate actions or a recurring shape in oracle bone scripts, later stylized into its current form to represent recurrence and repetition.
Semantic Evolution: From an ancient representation of continuation or doubling, it evolved to mean 'again' or 'once more' in modern Mandarin.
It is one of the most frequently used auxiliary adverbs in everyday Chinese communication.
6. Sinosphere
🇻🇳
Sino-Vietnamese
tái
Mandarin Tone 4 (sharp falling) corresponds roughly to Vietnamese sắc or nặng tone depending on historical derivations.
🇯🇵
Kanji (Japanese)
On: サイ / Kun: ふたた.び
🇰🇷
Hanja (Korean)
재
Sound Shift Bridge: The initial 'z-' [ts] maps predictably to Japanese 's-' or 'z-' sounds in Sino-Japanese compounds.
7. Memory
Vivid Mnemonic Story
You say goodbye (*zàijiàn*) and you promise to do it **again** (zài) every single time you cycle back through the same revolving door.
Phonetic Family (形声字家族)
在
zàiat, in, existAdds the earth radical (土) at the bottom to denote location or presence.
Lookalikes & Traps (形近字)
在(zài)
在 (zài) means 'at/in' and features the soil/earth radical (土) at the bottom, whereas 再 (zài) means 'again' and has a simpler box-like top structure.
8. Mastery
Active Recall Challenge
我們明天[___]見！
Clue: zài
Common Learner Pitfall
Confusing zài (再 - again) with zài (在 - at/in) in writing, since they share identical pronunciation and tone.
Memory Prompts
Recognition: When you see the character 再, what does it mean and how is it pronounced?
Production: How do you write the character for 'again' (zài) with Tone 4?
Real-World Video Context
Watch authentic native speakers pronounce and explain this word in real-world YouTube videos.
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再zàiagain
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