凸 (tū) is a Chinese character meaning “protruding”. It is written from ㇑ (vertical stroke) and ㇐ (horizontal stroke) and ㇑ (vertical stroke) and ㇎ (horizontal-turn-turn-turn stroke) and ㇐ (horizontal stroke), and takes 5 strokes.
Build the character for “protruding; convex”
Four steps: break it apart, build it, recall it, use it in a word.
StartLearn this character
Structure
㇑ + ㇐ + ㇑ + ㇎ + ㇐
Overlapping structure
- ㇑ vertical stroke unknown
- ㇐ horizontal stroke unknown
- ㇑ vertical stroke unknown
- ㇎ horizontal-turn-turn-turn stroke unknown
- ㇐ horizontal stroke unknown
Structure from: Unicode U+51F8 与 hanzi-writer-data 2.0.1 现代字形观察（第 1 笔竖为上凸块左壁、第 2 笔短横为左肩、第 3 笔竖为底座左壁、第 4 笔横折折折包住整个右侧、第 5 笔长横封底）
Memory aid
A short vertical (㇑) stands up on top like a bump. A short horizontal (㇐) steps out to its left. One long folding stroke (㇎) wraps down the whole right side, and a final horizontal (㇐) closes the flat bottom. Something raised sitting on flat ground: it sticks out.
This is a memory aid, not the historical origin.
Stroke order
5 strokes
In real words
- 凸出tū chūto protrude; to stick out凸 = tū
- 凹凸āo tūuneven; bumpy凸 = tū
Go deeper
All readings
protruding; convex
protruding; raised; convex; to stick out
高出周围的部分；向外鼓起，跟「凹」相对。 — studyhanzi 编写
Words with this reading
- 凸出tū chūto protrude; to stick out凸 = tū
- 凹凸āo tūuneven; bumpy凸 = tū
Stroke data: hanzi-writer-data (Arphic Public License) · licenses & attributions
Questions people ask about this character
What does 凸 mean?
凸 (tū) means protruding; raised; convex; to stick out.
How do you pronounce 凸?
It is pronounced tū.
What parts is 凸 made of?
㇑ (vertical stroke) and ㇐ (horizontal stroke) and ㇑ (vertical stroke) and ㇎ (horizontal-turn-turn-turn stroke) and ㇐ (horizontal stroke). The recorded source is: Unicode U+51F8 与 hanzi-writer-data 2.0.1 现代字形观察（第 1 笔竖为上凸块左壁、第 2 笔短横为左肩、第 3 笔竖为底座左壁、第 4 笔横折折折包住整个右侧、第 5 笔长横封底）. Components are the building blocks of the shape; the radical used for dictionary lookup is a separate thing.
How many strokes does 凸 have?
5. You can watch the stroke order on this page, or trace it yourself.
What is the radical of 凸?
凵. 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 凸?
Common ones are 凸出 and 凹凸. The reading of 凸 is not the same in every word, so each word on this page shows which reading applies.