Last Updated
：2025/11/26
safety coffin
（ plural ）
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Any coffin specially designed for the occupant to leave it in case of premature burial, such as by warning other people to help him.
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safety coffin
Worried about being buried alive, she insisted on being placed in a safety coffin equipped with a signaling bell and an extra air supply.
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Worried about being buried alive, she insisted on being placed in a safety coffin equipped with a signaling bell and an extra air supply.
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