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坳 — pronunciations, definitions, and tags
HanziPinyinEnglishTags
坳àocavity, depression, hollow; depressed; undulatingg, 8 strokes, radical 土, rank #53424, Very Hard
ào(ao4) T4
  1. 1cavity, depression, hollow; depressed; undulating
Listen to the audio pronunciation 3 times to gain XP
March 24, 2026

坳(㘭)ào(ao4)

The character 坳 (ào) refers to a geographical depression or cavity in the landscape, such as a hollow or dip in the ground. It is commonly used in contexts relating to topography and can describe undulating terrain. The nuance often implies a sense of being lower than the surrounding area.

Strokes8Radical土Frequency#53424DifficultyVery Hard
Cultural Note

In Chinese culture, landscape and geography are often celebrated in poetry and art, making terms like 坳 relevant in discussions of natural beauty and environment. Understanding this character can enhance appreciation for traditional Chinese landscape painting.

Memory Tip

Imagine a giant 'A' (for 'ao') sitting in a hollow (the shape of the character) surrounded by hills. Visualize it like a valley where the 'A' represents the dip or cavity that is lower than its surroundings, helping you remember both the shape and sound.

Meanings of 坳

ào(ao4)
1cavity, depression, hollow; depressed; undulating
Exercise 1 of 2

Listen & Choose the Meaning

Choose the correct answer:

About 坳

坳Simplified
㘭Traditional
8Strokes
土Radical
语素morpheme (morph.)Part of Speech
#—Frequency Rank

Podcast: 坳

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Podcast: 坳

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AI Study Notes for 坳

Quick Contrast

凹 (āo) - use 坳 (ào) for specific geographical depressions, while 凹 (āo) refers more generally to any concave shape.

Usage Notes

Learners often confuse 坳 (ào) with similar characters like 凹 (āo), which also means depression but is used in different contexts. It's important to use 坳 in geographical contexts rather than everyday situations. Be mindful of tone; using the wrong tone can change the meaning entirely.

HSK Study Tips

While 坳 is not in the official HSK vocabulary lists, understanding it can enrich your vocabulary related to nature and geography. Focus on its usage with other terrain-related vocabulary to build a cohesive understanding.

Common Mistakes

Learners might confuse 坳 (ào) with other similar characters, using it incorrectly in non-geographical contexts. For example, saying '我感觉很坳' (Wǒ gǎnjué hěn ào) to mean 'I feel depressed' is incorrect; instead, use 低落 (dīluò) for emotional states.

AI-enhanced 2026-03-24

Pronunciation of 坳

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Etymology of 坳

Formation Typepictophonetic
六书 ClassificationPhono-semantic (形声字)~80-90% of characters
Memory Hint

earth

Semantic (meaning)土
+
Phonetic (sound)幼
Learn more about Phono-semantic (形声字) characters

Jason Etymology Detective

Case file: 坳

  1. 1The meaning half土 carries the sense.
  2. 2The sound half幼 is there for the reading, not the meaning.
  3. 3The giveawayearth
  4. 4On the record aspictophonetic.

Every clue here comes from the character's recorded structure — nothing is guessed.

Want the full history of 坳? Jason searches the paleographic record, weighs the competing accounts and judges the popular story.

Charged once for this character — everyone reads it afterwards.
Exercise 1 of 1

Character Formation Type

What type of character formation is 坳?

Decomposition of 坳

IDS Structure⿰土幼
坳Full Character
=
土Tu3
left
幼you4
right
Exercise 1 of 2

Identify the Components

Which of these is a component of 坳?

How to say cavity, depression, hollow; depressed; undulating in Chinese

“cavity, depression, hollow; depressed; undulating” in Chinese is坳ào

The character 坳 (ào) refers to a geographical depression or cavity in the landscape, such as a hollow or dip in the ground. It is commonly used in contexts relating to topography and can describe undulating terrain. The nuance often implies a sense of being lower than the surrounding area.

When to use 坳

Learners often confuse 坳 (ào) with similar characters like 凹 (āo), which also means depression but is used in different contexts. It's important to use 坳 in geographical contexts rather than everyday situations. Be mindful of tone; using the wrong tone can change the meaning entirely.

坳 or something close to it

凹 (āo) - use 坳 (ào) for specific geographical depressions, while 凹 (āo) refers more generally to any concave shape.

What learners get wrong

Learners might confuse 坳 (ào) with other similar characters, using it incorrectly in non-geographical contexts. For example, saying '我感觉很坳' (Wǒ gǎnjué hěn ào) to mean 'I feel depressed' is incorrect; instead, use 低落 (dīluò) for emotional states.

Write 坳

坳

Practice writing 坳 stroke by stroke. Watch the animation to learn the stroke order, then try writing it yourself.

Write correctly 3 times to earn XP

Word Family of 坳

Words Containing This Character1
坳àocavity
Exercise 1 of 1

Compound Meaning

What does 坳 mean?

Frequently Asked Questions about 坳

While both refer to depressions, 坳 is typically used in a geographical context, whereas 凹 describes a more general concave shape.

Jason Recommends

Not sure what to learn after 坳?

Jason picks three words from your level and explains why each one is worth your time next. It takes a free account so he knows what you already know.