吨 (dūn) is a Chinese character meaning “ton (unit of weight, 1000 kg)”. It is written from 口 (mouth) and 屯 (village; to station), side by side, and takes 7 strokes.
Build the character for “ton (1000 kg)”
Four steps: break it apart, build it, recall it, use it in a word.
StartLearn this character
Structure
口 + 屯
Left–right structure
Structure from: 现代字形拆分经 hanzi-writer-data 2.0.1 笔画核验（口 3 + 屯 4 = 7）；右侧 屯 tún 与本字读音 dūn 韵母相同、声母相近，记为声符
Memory aid
A mouth (口) next to 屯, a stockpile stationed in one place. Say the weight of that whole stockpile out loud: one ton. Both parts are really in this character.
This is a memory aid, not the historical origin.
Stroke order
7 strokes
In real words
- 公吨gōng dūnmetric ton吨 = dūn
Go deeper
All readings
ton
ton (unit of weight, 1000 kg); tonnage of a ship
重量单位，一吨等于一千公斤。也指船只的载重量。 — studyhanzi 编写
Words with this reading
- 公吨gōng dūnmetric ton吨 = dūn
Sound component
屯 family onset shift
Stroke data: hanzi-writer-data (Arphic Public License) · licenses & attributions
Questions people ask about this character
What does 吨 mean?
吨 (dūn) means ton (unit of weight, 1000 kg); tonnage of a ship.
How do you pronounce 吨?
It is pronounced dūn.
What parts is 吨 made of?
口 (mouth) and 屯 (village; to station), side by side. The recorded source is: 现代字形拆分经 hanzi-writer-data 2.0.1 笔画核验（口 3 + 屯 4 = 7）；右侧 屯 tún 与本字读音 dūn 韵母相同、声母相近，记为声符. Components are the building blocks of the shape; the radical used for dictionary lookup is a separate thing.
How many strokes does 吨 have?
7. You can watch the stroke order on this page, or trace it yourself.
What is the radical of 吨?
口. 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 吨?
Common ones are 公吨. The reading of 吨 is not the same in every word, so each word on this page shows which reading applies.