Word Study
counterespionage
THESAURUS
counterespionage
bugging, cloak-and-dagger work, counterintelligence, electronic surveillance, espial, espionage, following, intelligence, intelligence work, military intelligence, observation, secret police, secret service, shadowing, spying, stakeout, surveillance, tailing, trailing, wiretap, wiretappingFor further exploring for "counterespionage" in Webster Dictionary Online