凸

tū

adjective HSK 7 #19,129

Meanings

1 protruding
2 convex
3 raised

Characters

protruding; convex

Examples

这面墙上有一块凸出来的砖。

Zhè miàn qiáng shàng yǒu yī kuài tūchūlái de zhuān.

There is a protruding brick on this wall.

凸透镜可以聚焦光线。

Tūtòujìng kěyǐ jùjiāo guāngxiàn.

A convex lens can focus light.

Tips

memory

The character 凸 visually looks like something protruding upward from a flat surface — a perfect pictograph!

usage

Opposite of 凹 (ao, concave). The pair 凸凹 or 凹凸 means uneven/bumpy.

Stroke Order

凸 tū