Surveillance is the act of watching people or place
Cambridge 15 Cambridge Dictionaries Online 2015 (Definition of surveillance from the Cambridge Academic Content Dictionary © Cambridge University Press) http://dictionary.cambridge.org/us/dictionary/american-english/surveillance
Definition of "surveillance" - American English Dictionary
Surveillance noun [U] us /sərˈveɪ·ləns/
› 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: The parking lot is kept under video surveillance.
Surveillance is keeping watch over
Random House 10 Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved. http://www.thefreedictionary.com/surveillance
sur•veil•lance (sərˈveɪ ləns, -ˈveɪl yəns) n.
1. a watch kept over someone or something, esp. over a suspect, prisoner, etc.: under police surveillance.
2. supervision or superintendence.
Surveillance is observation
Collins 2 Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002 http://www.thefreedictionary.com/surveillance
surveillance
noun observation, watch, scrutiny, supervision, control, care, direction, inspection, vigilance, superintendence He was arrested after being kept under constant surveillance.
Quotations
"Big Brother is watching you" [George Orwell 1984]
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