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  1. Dictionary
    top secret
    /tɒp ˈsiːkrət/

    adjective

    • 1. of the highest secrecy; highly confidential: "the experiments were top secret"

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  2. dictionary.cambridge.org › dictionary › englishTOP SECRET | English meaning - Cambridge Dictionary

    (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 project. SMART Vocabulary: related words and phrases. Secrecy and privacy. anonymity. anonymization. anonymize. anonymously. cryptography. data protection.

  3. www.merriam-webster.com › dictionary › top secretTop secret Definition & Meaning - Merriam-Webster

    1. : protected by a high degree of secrecy. a top secret weapon. a top secret meeting. 2. a. : containing or being information whose unauthorized disclosure could result in exceptionally grave danger to the nation. top secret messages. compare confidential, secret. b. : of or relating to top secret documents. a top secret clearance.

  4. dictionary.cambridge.org › us › dictionaryTOP SECRET | definition in the Cambridge English Dictionary

    TOP SECRET meaning: 1. (of information) extremely secret and not to be told to anyone outside a particular group of…. Learn more.

  5. www.vocabulary.com › dictionary › top-secretTop-secret - Definition, Meaning & Synonyms | Vocabulary.com

    2 days ago · top-secret. Have you sworn not to reveal the information in a thick file of papers? Then you can describe it as top-secret or classified — it is confidential, and must not be publicized or shared. If you work for the CIA or the FBI some day, you'll likely be responsible for top-secret information.

  6. www.collinsdictionary.com › us › dictionaryTOP SECRET definition in American English - Collins Online...

    Top secret information or activity is intended to be kept completely secret, for example, in order to prevent a country's enemies from finding out about it.

  7. www.dictionary.com › browse › top-secretTOP-SECRET Definition & Meaning | Dictionary.com

    Top-secret definition: bearing the classification top-secret, the highest level of classified information.. See examples of TOP-SECRET used in a sentence.

  8. www.oxfordlearnersdictionaries.com › english › top-secrettop secret adjective - Definition, pictures, pronunciation and...

    Definition of top secret adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

  9. dictionary.cambridge.org › dictionary › learner-englishtop-secret | meaning - Cambridge Learner's Dictionary

    top-secret definition: Top-secret information is very important and must not be told to anyone.. Learn more.

  10. premium-oxforddictionaries-com.libproxy.ucl.ac.uktop secret - definition of top secret in English from the Oxford...

    of the highest secrecy; highly confidential:. Meaning, pronunciation and example sentences, English to English reference content.

  11. www.britannica.com › dictionary › top-secretTop secret Definition & Meaning | Britannica Dictionary

    TOP SECRET meaning: kept completely secret by high government officials.