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