skeleton key

noun

Definition of skeleton key

: a key with a large part of the bit filed away to enable it to open low quality locks as a master key

Recent Examples of skeleton key from the Web

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First Known Use of skeleton key

1810

in the meaning defined above

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SKELETON KEY Defined for English Language Learners

skeleton key

Definition of skeleton key for English Language Learners

  • : a key that is made to open many different locks


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