a specially designed box or safe in which valuables are locked for safety
WordReference Random House Learner's Dictionary of American English © 2025
strong•box /ˈstrɔŋˌbɑks, ˈstrɑŋ-/USA pronunciation
n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2025- a strongly made box or chest for safeguarding valuables or money, esp. one that can be locked.
strong•box
(strông′boks′, strong′-),USA pronunciation n.
- a strongly made, lockable box or chest for safeguarding valuable possessions, as money, jewels, or documents.
- strong + box1 1675–85
Collins Concise English Dictionary © HarperCollins Publishers::
'strongbox' also found in these entries (note: many are not synonyms or translations):