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
After decades of uncertainty, Robinson’s contracts from 1945 and 1947 are safely under lock and key, held by the U.S.
From Los Angeles Times • Dec. 10, 2024
Participants would need to be kept under lock and key so their food intake could be tightly managed.
From BBC • Jul. 27, 2024
They still use equipment the Yankees donated in 2019 during MLB’s debut in Europe — baseball’s are in sparse supply in the U.K., so the Mets keep their gameday stockpile under lock and key.
From Seattle Times • Jun. 6, 2024
His uncle kept all food under lock and key.
From "Surviving Hitler: A Boy in the Nazi Death Camps" by Andrea Warren
