ˈmaster key BrE AmE noun [countable]
a key that will open all the door locks in a building
MASTER KEY
Meaning of MASTER KEY in English
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012
ˈmaster key BrE AmE noun [countable]
a key that will open all the door locks in a building
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012