master key
a key that will open a number of different locks, the proper keys of which are not interchangeable.
Origin of master key
1Words Nearby master key
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use master key in a sentence
There are methods and formulae in science which serve as master keys to many apparently different...
Mathematicians Prove 2D Version of Quantum Gravity Really Works | Charlie Wood | June 17, 2021 | Quanta MagazineYou must search for the secret springs that govern his actions and for the master key that will unlock his heart.
The value of a praying mother | Isabel C. ByrumNot since he had discovered the master-key of Evolution had Thyrsis come upon any set of ideas that meant so much to him.
Love's Pilgrimage | Upton SinclairThe theory of the class struggle is the master key to the bewilderments and confusions of history.
The Book of Life: Vol. I Mind and Body; Vol. II Love and Society | Upton SinclairThis was the master-key to her behaviour, and once I had got it, which I soon did, it was easy to unlock her breast.
Memoirs of Miss Sidney Biddulph | Frances Sheridan
Look, only look into the closet; wait here a moment, and I'll fetch a master key that shall open every one of them.
The Castle of Andalusia | John O'Keeffe
British Dictionary definitions for master key
a key that opens all the locks of a set, the individual keys of which are not interchangeable: Also called: pass key
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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