'Espionage' definitions:

Definition of 'espionage'

(from WordNet)
noun
The systematic use of spies to get military or political secrets

Definition of 'Espionage'

From: GCIDE
  • Espionage \Es"pi*o*nage\ (?; 277), n. [F. espionnage, fr. espionner to spy, fr. espion spy, OF. espie. See Espy.] The practice or employment of spies; the practice of watching the words and conduct of others, to make discoveries, as spies or secret emissaries; secret watching. [1913 Webster]

Words containing 'Espionage'