master key card
Pronunciation
/mˈæstɚ kˈiː kˈɑːɹd/

Définition et signification de « master key card » en anglais

master key card
01

a key card that can open many or all rooms, doors, or restricted areas in a hotel, office, or other building 

Exemples
The hotel manager used a master key card to enter the locked room. 
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