WordReference Random House Learner's Dictionary of American English © 2026
ˈtop-ˈse•cret,  adj. 
  1. Governmentof or relating to something to be kept completely secret or at the highest category of security:a top-secret document.

WordReference Random House Unabridged Dictionary of American English © 2026
top-se•cret  (top′sē′krit),USA pronunciation adj. (of information, a document, etc.)
  1. bearing the classification top-secret, the highest level of classified information.
  2. limited to persons authorized to use anything so classified. Cf. classification (def. 5).
  • top1 + secret 1940–45

Collins Concise English Dictionary © HarperCollins Publishers::
top-secret adj
  1. containing information whose disclosure would cause exceedingly grave damage to the nation and therefore classified as needing the highest level of secrecy and security
'top secret' also found in these entries (note: many are not synonyms or translations):
top-secret - classification - reclearance - TS - secret

🗣️Forum discussions with the word(s) "top secret" in the title:


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