HSK 7

凸

tū

to protrude, to bulge out

HSK 7 凸 凵 5 画
Stroke order animation for 凸

この漢字を含む単語

凹凸 āo tū HSK 6
concave or convex
凸 tū HSK 7
凸
凸显 tūxiǎn HSK 7
凸显

Meaning and Usage

The character '凸' primarily describes something that protrudes or bulges outward. It is often used in physical descriptions, such as surfaces or shapes that are convex or raised.

Common Collocations

  • 凸起 (tūqǐ): to bulge out, to protrude
  • 凸点 (tūdiǎn): a small bump or protrusion
  • 凸面 (tūmiàn): convex surface

Usage Notes

'凸' is mostly used in written or technical contexts to describe shapes or surfaces. It can appear in diagrams or descriptions of objects. It is not commonly used as a standalone verb in daily conversation but appears in compound words. Avoid confusing it with '凹' (āo), which means concave or sunken.

Register and Tone

The character is neutral in tone and formal in register, suitable for technical descriptions or scientific contexts.

例文

这个瓶子的表面有一个凸起的地方。

Zhège píngzi de biǎomiàn yǒu yīgè tūqǐ de dìfang.

There is a protruding spot on the surface of this bottle.

手机屏幕上有一个小凸点，用来指示前置摄像头的位置。

Shǒujī píngmù shàng yǒu yīgè xiǎo tūdiǎn, yòng lái zhǐshì qiánzhì

There is a small bump on the phone screen to indicate the position of the

这张图用凸字形状表示重要的部分。

Zhè zhāng tú yòng tū zì xíngzhuàng biǎoshì zhòngyào de bùfen.

This diagram uses the shape of the character '凸' to highlight important