| Espionage (n.) 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. Thesaurus Entries bugging, cloak-and-dagger work, counterespionage, counterintelligence, electronic surveillance, espial, following, intelligence, intelligence work, looking, lookout, military intelligence, note, notice, observance, observation, reconnaissance, regard, respect, secret police, secret service, shadowing, sleuthing, spying, stakeout, surveillance, tailing, trailing, viewing, watch, watching, wiretap, wiretapping, witnessing |