凹 (āo) - Meaning, Stroke Order, Words & Examples

Q: What does 凹 (āo) mean in Chinese?

The Chinese character 凹 (āo) means "Concave; sunken". with 5 strokes and the radical 凵.

Q: How do you write 凹 stroke by stroke?

凹 has 5 strokes. The radical is 凵. Follow the standard stroke order: top to bottom, left to right, outside before inside. Practice with stroke animation to build muscle memory.

Q: What's the difference between 凹 and 凶?

凹 (āo) and 凶 look similar but differ in meaning and usage. Check the radical and stroke count to tell them apart.

Q: What mistakes do learners make writing 凹?

Common mistake: incorrect stroke order or miswriting the radical 凵. Pay attention to the proportion between components — keep the radical compact.

Q: What common words use 凹?

Common words containing 凹 include: 凹陷 (āo xiàn) — To sink in; hollowed out; 凹透镜 (āo tòu jìng) — Concave lens; 凹凸 (āo tū) — Bumpy; uneven (concave and convex).

How to Write 凹

The character 凹 (āo) is written with 5 strokes. Follow the standard Chinese stroke order: top to bottom, left to right, outside before inside. The radical 凵 is one of its key components.

Practice the correct stroke order with the Hanzi Writer app to see animated stroke-by-stroke guidance with real-time feedback.

Meaning & Pronunciation

凹 is pronounced āo in Mandarin Chinese. It means Concave; sunken.

This is a polyphonic character with readings: āo, wā.

Common Words with 凹

凹陷 āo xiàn

To sink in; hollowed out

凹透镜 āo tòu jìng

Concave lens

凹凸 āo tū

Bumpy; uneven (concave and convex)

凹地 wā dì

Depression (geographical)

Example Sentences

地面有些凹陷。

dì miàn yǒu xiē āo xiàn

The ground is somewhat sunken.

近视镜是凹透镜。

jìn shì jìng shì āo tòu jìng

Glasses for nearsightedness are concave lenses.

这条路凹凸不平。

zhè tiáo lù āo tū bù píng

This road is uneven.

这片凹地容易积水。

zhè piàn wā dì róng yì jī shuǐ

This low-lying area is prone to water accumulation.

Similar Characters

凶 xiōng

凸 tū

出 chū

Practice Writing 凹 (āo)

Open Hanzi Writer to see the animated stroke order and practice writing 凹 with real-time feedback.

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Frequently Asked Questions about 凹

What does 凹 (āo) mean in Chinese?

How do you write 凹 stroke by stroke?

What's the difference between 凹 and 凶?

What mistakes do learners make writing 凹?

What common words use 凹?

How to Write 凹 (āo)