funeral door

(US, architecture) a door to the outside from the parlor or hall to allow for the movement of the dead; from the time when the wealthy would host their wakes and funerals in their own homes. It is a supplementary door to the main doors of the home, unconnected from exterior stairs or walkways. The death door existed to allow for the dead to move through doors without needing to use the doorways used by the living.

(US) A mortuary or funeral home.

The standard American English term for a funeral home — the establishment where bodies are prepared for burial or cremation and funeral services are arranged and held. While not slang in the traditional sense, 'funeral parlor' carries a slightly older, more formal register than 'funeral home,' evoking the Victorian and Edwardian era when such facilities were literally parlours repurposed for the purpose. The term is widely understood and used across the US without controversy.

(by extension) The entire main entrance to a building or house.

The habitual or designated main entrance to a room that has more than one door.