润 (rùn) is a Chinese character meaning “moist”. It is written from 氵 (water (left-side form)) and 闰 (intercalary; leap (as in a leap month)), side by side, and takes 10 strokes.
Build the character for “moist; to moisten”
Four steps: break it apart, build it, recall it, use it in a word.
StartLearn this character
Structure
氵 + 闰
Left–right structure
Structure from: 说文解字「潤，水曰潤下。从水閏聲」；IDS 拆分 ⿰氵闰（闰 = ⿵门王），并以 hanzi-writer-data 笔画核验：笔画 0–2 为「氵」，笔画 3–5 为「门」，笔画 6–9 为「王」（3+7=10画）
Memory aid
Water (氵) beside 闰 (rùn, the extra "leap" month). Add a little extra water and things turn moist and smooth — and 闰 lends its sound: rùn.
This is a memory aid, not the historical origin.
Stroke order
10 strokes
In real words
- 湿润shī rùnmoist; humid润 = rùn
- 利润lì rùnprofit润 = rùn
Go deeper
All readings
moist; to moisten
moist; smooth, sleek; to moisten; to polish (writing); profit, benefit
湿润、不干燥；使湿润；光滑有光泽；修饰文字；也指利益、好处。 — studyhanzi 编写
Words with this reading
- 湿润shī rùnmoist; humid润 = rùn
- 利润lì rùnprofit润 = rùn
Stroke data: hanzi-writer-data (Arphic Public License) · licenses & attributions
Questions people ask about this character
What does 润 mean?
润 (rùn) means moist; smooth, sleek; to moisten; to polish (writing); profit, benefit.
How do you pronounce 润?
It is pronounced rùn.
What parts is 润 made of?
氵 (water (left-side form)) and 闰 (intercalary; leap (as in a leap month)), side by side. The recorded source is: 说文解字「潤，水曰潤下。从水閏聲」；IDS 拆分 ⿰氵闰（闰 = ⿵门王），并以 hanzi-writer-data 笔画核验：笔画 0–2 为「氵」，笔画 3–5 为「门」，笔画 6–9 为「王」（3+7=10画）. Components are the building blocks of the shape; the radical used for dictionary lookup is a separate thing.
How many strokes does 润 have?
10. You can watch the stroke order on this page, or trace it yourself.
What is the radical of 润?
氵. The radical is how the character is filed in a dictionary — it is not the whole story of how the character is built.
What words use 润?
Common ones are 湿润 and 利润. The reading of 润 is not the same in every word, so each word on this page shows which reading applies.