bn:00075427n
Noun Concept
Categories: Articles with permanently dead external links, All articles with dead external links, All Wikipedia articles needing clarification, Security, National security
EN
surveillance  video surveillance  anti-surveillance activists  biometric surveillance  covert surveillance  surveillance system
EN
Close observation of a person or group (usually by the police) WordNet 3.0
Definitions
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Sources
EN
Close observation of a person or group (usually by the police) WordNet 3.0 & Open English WordNet
Surveillance is the monitoring of behavior, many activities, or information for the purpose of information gathering, influencing, managing or directing. Wikipedia
Monitoring of people's actions. Wikipedia Disambiguation
Monitoring of behavior, activities, or other changing information, for the purpose of influencing, managing or directing Wikidata
Close observation of an individual or group; person or persons under suspicion. Wiktionary