Thesaurus.com
Dictionary.com
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

Just days before the stone was to be released, a federal court judge ordered that the emerald remain under lock and key until the federal case with Brazil concludes.

From Los Angeles Times • Dec. 13, 2024

Participants would need to be kept under lock and key so their food intake could be tightly managed.

From BBC • Jul. 27, 2024

His uncle kept all food under lock and key.

From "Surviving Hitler: A Boy in the Nazi Death Camps" by Andrea Warren