# 凹 — Concave

Frequency rank 2216 / 2,608 in published Japanese.

Rarer in this ranking, but still part of the 2,608-character published set.

More common than 升 (Grid), less common than 蔽 (Cover).

- On’yomi: おう
- Kun’yomi: —
- Radical: 凵 Receptacle (Kangxi 17)
- Frequency path: Level XVII of XX

The concave character looks like a depression pressed into a surface — the outline shows walls dipping down into a hollow center, visually sinking inward.

In words:

- 凹む へこむ — to be dented,to be indented,to yield to,to give,to sink,to collapse,to cave in,to be snubbed
- 凸凹 でこぼこ — unevenness,roughness,ruggedness

[Study 凹](https://app.kanjidrift.com/study?kanji=%E5%87%B9)

[← Rank 2215: 蔽 (Cover)](https://kanjidrift.com/frequency/蔽.md) · [Rank 2217: 升 (Grid) →](https://kanjidrift.com/frequency/升.md)

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