espionagenoun [ U ]
uk/ˈes.pi.ə.nɑːʒ/us/ˈes.pi.ə.nɑːʒ/the discovering of secrets, especially political or military information of another country or the industrial information of a business:
military/industrial espionage
See also
spy
Thesaurus: synonyms and related words
International relations: spying and espionage
- agent
- agent provocateur
- counter-espionage
- counterintelligence
- deep state
- MI5
- MI6
- on the inside idiom
- operative
- phone tapping
- quisling
- scout
- spook
- spy
- spy on sb/sth
- tail
- tap
- the CIA
- wired up
- wiretap
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