SURVEILLANCE IS CAREFUL OBSERVATION Surveillance is careful observation
American Heritage 14 The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. http://www.thefreedictionary.com/surveillance
Surveillance noun
The act of carefully watching: lookout, vigil, vigilance, watch. Idiom: watch and ward.
Surveillance is carefully watching
Merriam Webster 15 2015 Merriam-Webster, Incorporated http://www.merriam-webster.com/dictionary/surveillance
surveillance
noun sur·veil·lance \sər-ˈvā-lən(t)s also -ˈvāl-yən(t)s or -ˈvā-ən(t)s\
: the act of carefully watching someone or something especially in order to prevent or detect a crime
Full Definition of SURVEILLANCE
: close watch kept over someone or something (as by a detective); also : supervision
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