surveillance[sər vā′ləns; occas., -vāl′yəns]
- Surveillance is the close observation of someone, often in order to catch them in wrongdoing.
An example of surveillance is a private detective hired to follow a cheating spouse before divorce proceedings.
- close watch kept over someone, esp. a suspect
- constant observation of a place or process
- supervision or inspection
Origin of surveillanceFrench ; from surveiller, to watch over ; from sur- (see sur-) + veiller ; from Classical Latin vigilare, to watch, wake
- Close observation of a person or group, especially one under suspicion.
- The act of observing or the condition of being observed.
- Close observation of an individual or group; person or persons under suspicion.
- Continuous monitoring of disease occurrence for example.
- (military, espionage) Systematic observation of places and people by visual, aural, electronic, photographic or other means.
- (law) In criminal law, an investigation process by which police gather evidence about crimes, or suspected crime, through continued observation of persons or places.
Borrowing from French surveillance (â€œa watching over, overseeing, supervisionâ€), from surveiller (â€œto watch, overseeâ€), from sur- (â€œoverâ€) + veiller (â€œto watchâ€), from Middle French, from Old French veillier (â€œto stay awakeâ€), from Latin vigilÄre, present active infinitive of vigilÅ (â€œI am watchfulâ€). More at vigilant.
surveillance - Computer Definition
surveillance - Legal Definition