凹 — concave, hollow, sunken

へこむ凹 concave

Grade S Japanese school grade level in which this kanji is taught. Grade 1 is first year of elementary school. 5 strokes

U+51F9 Unicode hex codepoint — a unique identifier for this character in the Unicode standard. Freq #2206 Frequency rank among the ~2,500 most common kanji in Japanese newspapers. Lower number = more common. Heisig #33 Index in James Heisig's "Remembering the Kanji" — a popular textbook that teaches kanji through mnemonics and stories.

Meanings

concave
hollow
sunken

word

へこ heko Kun'yomi Kun'yomi (訓読み) — the native Japanese reading of this kanji. Used when the kanji appears alone or with okurigana (trailing hiragana).

凹(へこ) む hekomu to be dented

Jukujikun Jukujikun Jukujikun (熟字訓) — special readings where the pronunciation applies to the whole compound word rather than individual kanji. The reading cannot be split per character.

凸凹(でこぼこ) dekoboko unevenness

Stroke order

Stroke data from KanjiVG (CC BY-SA 3.0)

Components

Composed of

凵 open box

Open in Atlas

Kangxi Radical The Kangxi radicals are a set of 214 character components standardized in the 1716 Kangxi Dictionary. Every kanji is classified under one radical, used for dictionary lookup and character organization.

#17 凵 open box