āo
凹
concave, hollow; depressed; pass, valley
HSK 3.0 · 7–9
01 · Write
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02 · Stroke order
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03 · Details
Meaning, words & where you learn it
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Words with 凹
凹凸 āo tū
concave or convex; bumps and holes
Character facts
- Radical
- 凵 container; receptacle
- Structure
- Top–bottom
- Unicode
- U+51F9
Ideographic: A rectangle with a hollow