Synonyms and related words :
bringing to light, bugging, casual discovery, catching, chance discovery, cloak-and-dagger work, counterespionage, counterintelligence, detection, determination, determining, disclosure, discovery, distinguishment, electronic surveillance, espionage, excavation, exhumation, exposure, find, finding, finding out, following, intelligence, intelligence work, invention, locating, location, looking, lookout, lucky strike, military intelligence, note, notice, observance, observation, recognition, rediscovery, regard, respect, revelation, secret police, secret service, serendipity, shadowing, spotting, spying, stakeout, strike, surveillance, tailing, trailing, treasure trove, trouvaille, trove, uncovering, unearthing, viewing, watch, watching, wiretap, wiretapping, witnessing