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to be chipped; to be nicked (of a blade, tooth, etc.)
Note: of an edge or tooth
包丁の刃がこぼれて切れ味が落ちた。
The knife blade got chipped and lost its sharpness.
茶碗の縁が少しこぼれている。
The rim of the tea bowl is slightly chipped.
転んだ拍子に前歯が少しこぼれた。
When I fell, I chipped one of my front teeth.