Meaning Of The Word Master key

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What's the definition of Master key? Find Master key meanings, definitions and more at the Real Dictionary online.

Master key Meaning

Master key Definition
Master key Definition

What's The Definition Of Master key?

master key
countable noun: A master key is a key which will open all the locks in a set, even though each lock has its own different key.

master key in American English
a key that will open a number of different locks, the proper keys of which are not interchangeable
a key that will open every one of a set of locks

master key in British English
noun: a key that opens all the locks of a set, the individual keys of which are not interchangeable

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