ESPIONAGE Meaning of ESPIONAGE in English [ 'ɛspɪənα:ʒ , -ɪdʒ ]■ noun the practice of spying or of using spies.OriginC18: from Fr. espionnage , from espionner 'to spy', from espion 'a spy'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004