Synonyms

skeleton key

American

noun

a key with nearly the whole substance of the bit filed away so that it may open various locks.

skeleton key British

noun

Also called: passkey. a key with the serrated edge filed down so that it can open numerous locks

"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

Etymology

Origin of skeleton key

First recorded in 1800–10

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Those looking for a felt skeleton key to unlock his various idiosyncrasies aren’t likely to find one.

From New York Times • Mar. 11, 2023

The two hand-delivered the resolution to the city government in Novorossiysk along with a symbolic large golden skeleton key.

From Seattle Times • Mar. 18, 2022

The virus uses its spike protein like a skeleton key to ease open cells.

From Washington Post • Jun. 7, 2021

“It gave me a skeleton key on which to hang all sorts of characters,” she says.

From Los Angeles Times • Jul. 24, 2020

And lots of things I’ve collected: shells, rocks, a tiny glass elephant, a blackened old skeleton key my grandmother found in a chest but which unlocks nothing.

From "Rules" by Cynthia Lord

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023