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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 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.

  3. Espionage | international relations | Britannica

    Nov 7, 2025 · espionage, process of obtaining military, political, commercial, or other secret information by means of spies, secret agents, or illegal monitoring devices. Espionage is sometimes …

  4. Espionage Cases and Modern Counterintelligence Practices

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

  5. 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.

  6. Decoding Espionage: Newly Declassified Documents Reveal the ...

    Dec 11, 2025 · H ow is the history of espionage relevant to the present? How does recent document declassification change our understanding of the Cold War? Spies, Lies, and Algorithms broadly and …

  7. 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.

  8. Espionage - New World Encyclopedia

    Espionage is the practice of obtaining confidential information through spying; a practice that often employs covert, clandestine, illegal or unethical behavior. Spies have been used to create political, …

  9. Espionage and Intelligence | Research Starters - EBSCO

    Espionage, commonly referred to as spying, is the secretive collection of sensitive government and military information from adversaries to gain strategic advantages. This practice has ancient roots, …

  10. 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 plans or …