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Definitions

under lock and key





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.

The sorrows that trouble him he keeps under lock and key.

From The Wall Street Journal • Dec. 4, 2025

Maybe we’ll find ourselves under lock and key across the street in the Eisenhower Executive Office Building.

From Salon • Nov. 7, 2025

He could provide an option on the flank, but Liverpool's wide areas appear to be under lock and key.

From BBC • Jun. 14, 2025

His sister can’t even imagine what he gets up to with all those suspect books he keeps piled up under lock and key.

From Los Angeles Times • May 21, 2025

For two days there was nothing but strawberries, strawberries, strawberries, and then our supply was either exhausted or in jars, safely under lock and key.

From "The Diary of a Young Girl" by Anne Frank