master key
English
Noun
master key (plural master keys)
- A key designed to open a set of several locks; a passkey.
- (figuratively) Any tool or technique that can solve many types of difficulty.
- (law enforcement, slang) A shotgun shell designed for breaching doors.
Translations
a key that opens a set of several locks
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See also
- skeleton key
Anagrams
- keystream, stream key