e/Safety coffin

Information
has gloss	eng: A safety coffin or security coffin is a coffin fitted with a mechanism to prevent premature burial or allow the occupant to signal that he has been buried alive. A large number of designs for safety coffins were patented during the 18th and 19th centuries and variations on the theme are still available today.
lexicalization	eng: safety coffin
instance of	(noun) box in which a corpse is buried or cremated coffin, casket