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[top-see-krit] /ˈtɒpˈsi krɪt/
adjective, (of information, a document, etc.)
bearing the classification top-secret, the highest level of classified information.
limited to persons authorized to use anything so classified.
Compare classification (def 5).
Origin of top-secret
First recorded in 1940-45; top1 + secret Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for top-secret
Contemporary Examples
Historical Examples
  • You'd think so, with all the top-secret precautions that have been taken.

    Ten From Infinity Paul W. Fairman
  • Now it was the Swifts' top-secret rocket base, tightly guarded by drone planes and radar.

  • Temple was a thermo-nuclear engineer with top-secret government clearance.

    Voyage To Eternity Milton Lesser
  • The higher you went in these top-secret projects, the more silence and stubbornness you found.

    Ten From Infinity Paul W. Fairman
  • A good thing, too, otherwise the enemy would be getting our top-secret information in print all the time.

British Dictionary definitions for top-secret


containing information whose disclosure would cause exceedingly grave damage to the nation and therefore classified as needing the highest level of secrecy and security
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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