覆 means “cover, overturn”

おおう · oou

Also: capsize, shade, mantle

Kun'yomi (Japanese reading)
おおう, くつがえす, くつがえる
On'yomi (Chinese reading)
フク

JLPT N1 · Taught in secondary school · 18 strokes

The story

A lid (覀) pressed down over 復, turning back: covering something, or flipping it right over. 覆う is to cover, 覆面 is a mask, and 覆す is to overturn, as when a higher court overturns a verdict or a boat 転覆, capsizes.

Used in 覆う (oou, to cover), 覆す (kutsugaesu, to overturn), and 転覆 (tenpuku, capsizing)

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Readings from KANJIDIC2, © EDRDG, CC BY-SA.