
凹 - Concave
Concave looks like a sunken alley: a left wall, a pit in the center, and a right wall. In Japan it pairs with its opposite 凸 as 凹凸 for bumpy surfaces, so picture that alley’s uneven stones underfoot to lock the shape in memory.
All Mnemonics (3)

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凹 - Concave
Index # 1262
Grade 7
5 strokes
JLPT Level : N1
Readings : オウ