ALL meanings of master key
mas·ter key
M m - noun master key passkey, key that opens a number of locks 1
- noun master key a key that will open a number of different locks, the proper keys of which are not interchangeable. 1
- noun master key A key designed to open a set of several locks; a passkey. 0
- countable noun master key A master key is a key which will open all the locks in a set, even though each lock has its own different key. 0
- noun master key a key that opens all the locks of a set, the individual keys of which are not interchangeable 0
- noun master key a key that will open every one of a set of locks 0