Definition of espionage in English:

espionage

Line breaks: es¦pi¦on|age
Pronunciation: /ˈɛspɪənɑːʒ
 
/

noun

[mass noun]
The practice of spying or of using spies, typically by governments to obtain political and military information: the camouflage and secrecy of espionage
More example sentences
  • Balzac pumped him for information on organised crime and political espionage.
  • He denied his detention had anything to do with politics or espionage.
  • The run for the presidency is no joke, rife with political chicanery, espionage and blackmail.
Synonyms
spying, undercover work, cloak-and-dagger activities, surveillance, reconnaissance, intelligence, eavesdropping, infiltration, cyberespionage, counter-espionage, counter-intelligence;
in Japanninjutsu

Origin

late 18th century: from French espionnage, from espionner 'to spy', from espion 'a spy'.

Definition of espionage in:

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