panic room
US /ˈpæn.ɪk ˌruːm/
UK /ˈpæn.ɪk ˌruːm/

1.
pièce de sécurité, pièce de panique
a room in a house or building that is designed to be very secure, often with reinforced walls and a separate ventilation system, to provide a safe haven for occupants during an emergency or home invasion
:
•
The wealthy businessman had a hidden panic room in his mansion.
Le riche homme d'affaires avait une pièce de sécurité cachée dans son manoir.
•
During the earthquake, they took shelter in the specially constructed panic room.
Pendant le tremblement de terre, ils se sont réfugiés dans la pièce de sécurité spécialement construite.