Surveillance is the close observation of someone, often in order to catch them in wrongdoing.
(noun)An example of surveillance is a private detective hired to follow a cheating spouse before divorce proceedings.
See surveillance in Webster's New World College Dictionary
noun
Origin: Fr < surveiller, to watch over < sur- (see sur-) + veiller < L vigilare, to watch, wake
See surveillance in American Heritage Dictionary 4
noun
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