释义 |
counter-surveillance noun[ U ] (alsocountersurveillance)uk /ˌkaʊn.tə.səˈveɪ.ləns/ us /ˈkaʊn.t̬ɚ.sɚˌveɪ.ləns/ the activity of using various methods and machines to find out if you are under surveillance(= being watched by the authorities or an enemy) : As part of my job I was instructed in counter-surveillance. Anyone can now buy countersurveillance equipment that can detect a variety of spying devices. The point of counter-surveillance is to find out whether you are being followed or not. A counter-surveillance team had swept his home and office for bugs. Organized crime groups are using technology to evade police and conduct counter-surveillance. SMART Vocabulary: related words and phrases Using the eyes accommodate accommodation all eyes are on someone/somethingidiom astigmatic beholder cast corner discern fix glare penetrating perceive re-sight rest on someone/something resurvey rubbernecking scope sighting spot tab |