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lockbox

American  
[lok-boks] / ˈlɒkˌbɒks /

noun

  1. a strongbox.

  2. a rented post office box equipped with a lock.

  3. Also called lockout boxTelevision. a closed box, usually fitted with a lock, containing electronic equipment to unscramble cable television pictures for subscribers only: used especially to prevent children from watching programs with explicit sexual content.


Etymology

Origin of lockbox

An Americanism dating back to 1870–75; lock 1 + box 1

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.

See Examples For:

Slaymaker said while "extreme", a lockbox for mobile phones would help improve the cinema experience.

From BBC May 21, 2026

The handwritten formula is kept in a lockbox at an undisclosed Bank of America location in San Diego.

From The Wall Street Journal Jan. 26, 2026

She kept her wages in cash in a lockbox under her bed because she was too young to open her own banking account.

From Los Angeles Times Sep. 14, 2023

The thing about Mr. Foreman is that he's like a deep, deep lockbox.

From Salon Apr. 29, 2023

She gasped and lifted out a sturdy pink metal lockbox.

From "Keep It Together, Keiko Carter" by Debbi Michiko Florence

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