strongbox

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noun

A sturdy box with a lock, for storing valuables.

“Near-synonyms: safe-deposit box, safe deposit box, safety-deposit box”

Similar
lockboxsafesafeboxsafe-deposit boxsafe deposit boxsafety-deposit boxdeedbox
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Meanings

nounstrongbox (plural strongboxes)

plural strongboxes

  1. A sturdy box with a lock, for storing valuables.

    Near-synonyms: safe-deposit box, safe deposit box, safety-deposit box

    1 more example

    An inroad on the strongbox, or an erasure in the ledger, or a missummation in a fitted account, could hardly have surprised him more disagreeably.

    1817 December 31 (indicated as 1818), [Walter Scott], Rob Roy. […], volume (please specify |volume=I to III), Edinburgh: […] James Ballantyne and Co. for Archibald Constable and Co. […]; London: Longman, Hurst, Rees, Orme, and Brown, →OCLC

    Synonyms: lockbox, safe, safebox, safe-deposit box, safe deposit box, safety-deposit box

Synonyms & antonyms

nounA sturdy box with a lock, for storing valuables.

Similar
lockboxsafesafeboxsafe-deposit boxsafe deposit boxsafety-deposit box

More synonyms by meaning

nouna strongly made box for holding money or valuables; can be locked

Similar
deedbox
Broader
box
Also see
cofferdeedboxlockboxsafesafe-deposit box

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

From strong + box. Compare French coffre-fort.

Full word history & related roots →
Cite this entry
APA

strongbox. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/strongbox

MLA

“strongbox.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/strongbox. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “strongbox,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/strongbox.

Source: strongbox on Wiktionary, CC BY-SA 4.0.