Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “top secret”

top secret

adjective    
(of information) extremely secret and not to be told to anyone outside a particular group of people: These papers are top secret. [before noun] a top-secret military research projectSecrecy and privacy
(Definition of top secret adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of top secret

Translations of “top secret”

Word of the Day

sail

When a boat or a ship sails, it travels on the water.

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More