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  1. Espionage - Wikipedia

    Espionage, spying, or intelligence gathering, as a subfield of the intelligence field, is the act of obtaining secret, confidential, or in some way valuable information.

  2. Espionage | international relations | Britannica

    Dec 19, 2025 · espionage, process of obtaining military, political, commercial, or other secret information by means of spies, secret agents, or illegal monitoring devices. Espionage is …

  3. ESPIONAGE Definition & Meaning - Merriam-Webster

    The meaning of ESPIONAGE is the practice of spying or using spies to obtain information about the plans and activities especially of a foreign government or a competing company.

  4. Espionage Facts - International Spy Museum

    Espionage is defined as the act of spying or using spies, agents, assets, and intelligence officers, as well as technology, to collect secret information, usually through illegal means.

  5. Espionage Cases and Modern Counterintelligence Practices

    Mar 18, 2025 · Espionage cases: Learn about historical cases of spying and modern practices for combating espionage.

  6. ESPIONAGE | definition in the Cambridge English Dictionary

    ESPIONAGE meaning: 1. the discovering of secrets, especially political or military information of another country or…. Learn more.

  7. espionage | Wex | US Law | LII / Legal Information Institute

    Espionage is the crime of secretly obtaining or transmitting information without authorization for the purpose of benefiting a foreign power, organization, or entity.

  8. Espionage - definition of espionage by The Free Dictionary

    1. the act or practice of spying. 2. the use of spies by a government to discover the military and political secrets of other nations. 3. the use of spies by a corporation or the like to acquire the …

  9. Espionage Definition, History & Techniques - Study.com

    Learn the definition of espionage. Understand what espionage is, learn the spy definition, read the history of espionage, and learn popular espionage techniques.

  10. Espionage - Encyclopedia.com

    May 17, 2018 · Espionage, commonly known as spying, is the practice of secretly gathering information about a foreign government or a competing industry, with the purpose of placing …