MASTER KEY Definition & Meaning

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master key

noun

a key that will open a number of different locks, the proper keys of which are not interchangeable.

master key

noun

a key that opens all the locks of a set, the individual keys of which are not interchangeable Also calledpass key

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�y��vlog History and Origins

Origin of master key¹

First recorded in 1570–80

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Example Sentences

Examples have not been reviewed.

"As we have said many times before, we have never built a backdoor or master key to any of our products or services and we never will," Apple says on its website.

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"As we have said many times before, we have never built a backdoor or master key to any of our products, and we never will," a spokesperson told the BBC.

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Apple told the BBC in a statement that it had "never built a backdoor or master key to any of our products, and we never will".

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"As we have said many times before, we have never built a backdoor or master key to any of our products, and we never will," it continued.

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Why it's important: Your SSN is a master key to your financial life.

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