under lock and key
IdiomsExample Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The sorrows that trouble him he keeps under lock and key.
Maybe we’ll find ourselves under lock and key across the street in the Eisenhower Executive Office Building.
From Salon
A Peaky Blinders film will be released soon by Netflix, although Murphy said the plot line is still under lock and key.
From BBC
Wirtz could provide an option on the flank, but Liverpool's wide areas appear to be under lock and key.
From BBC
He could provide an option on the flank, but Liverpool's wide areas appear to be under lock and key.
From BBC
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.