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Learn to pronounce sur·veil·lance

/sərˈvāləns/
noun
close observation, especially of a suspected spy or criminal.
"he found himself put under surveillance by military intelligence"
synonyms: observation, scrutiny, watch, view, inspection, monitoring, supervision, superintendence, spying, espionage, intelligence, undercover work, infiltration, reconnaissance, bugging, wiretapping, phone tapping, recon

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6 days ago · The meaning of SURVEILLANCE is close watch kept over someone or something (as by a detective); also : supervision. How to use surveillance ...
attentive observation, as to oversee and direct someone or something: increased surveillance of patients with chronic liver disease.
the act of watching a person or a place, esp. a person believed to be involved with criminal activity or a place where criminals gather:.
Surveillance is the monitoring of behavior, many activities, or information for the purpose of information gathering, influencing, managing, or directing.
In medicine, the ongoing evaluation of an individual who has an increased risk of developing a disease or who has a disease that appears to be clinically ...
Definitions of surveillance. noun. close observation of a person or group (usually by the police)
the act of carefully watching someone or something especially in order to prevent or detect a crime. government surveillance of suspected terrorists.
Surveillance is the careful watching of someone, especially by an organization such as the police or the army. He was arrested after being kept under constant ...
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In public health, surveillance may also refer to the ongoing collection of information about a disease, such as cancer, in a certain group of people. The ...