Definition of surveillance
: close watch kept over someone or something (as by a detective); also : supervision
Examples of surveillance in a Sentence
government surveillance of suspected terrorists
The bank robbery was recorded by surveillance video cameras.
Recent Examples of surveillance from the Web
Also, Shore sat in a dark blue Hyundai Elantra, the shade and make of car that the Dania Walgreens surveillance video showed driving away after Wednesday’s failed note robbery.
But U.S. officials dating back to the Reagan administration, based on aerial and other surveillance, had long believed they were also being used for intelligence purposes.
At the time, U.S. security experts defended the surveillance, saying friendships can easily end — an argument that was swiftly dismissed in Berlin, where strong transatlantic ties had long been the foundation of its international diplomacy.
A man, believed to be the witness, tried to break up the fight, the surveillance footage showed.
American military surveillance planes and satellites could track missile transporters and convoys of fuel trucks.
Photo: TigerSwan.com Find, Fix, Eliminate TigerSwan’s internal files describe its utilization of aerial surveillance, including use of helicopters and drones to photograph and monitor the pipeline opponents.
Putting one person under surveillance is expensive, requiring as many as 30 officers.
Neither the meeting nor the communications of Americans involved were under U.S. surveillance, officials said.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'surveillance'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
SURVEILLANCE Defined for English Language Learners
Definition of surveillance for English Language Learners
: the act of carefully watching someone or something especially in order to prevent or detect a crime
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