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Synonyms

surveillance

American  
[ser-vey-luhns, -veyl-yuhns] / sərˈveɪ ləns, -ˈveɪl yəns /

noun

  1. a watch kept over a person, group, etc., especially over a suspect, prisoner, or the like.

    The suspects were under police surveillance.

  2. continuous observation of a place, person, group, or ongoing activity in order to gather information.

    video cameras used for covert surveillance.

  3. attentive observation, as to oversee and direct someone or something.

    increased surveillance of patients with chronic liver disease.


surveillance British  
/ sɜːˈveɪləns /

noun

  1. close observation or supervision maintained over a person, group, etc, esp one in custody or under suspicion

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • countersurveillance noun
  • surveillant adjective

Etymology

Origin of surveillance

1790–1800; < French, equivalent to surveill ( er ) to watch over ( sur- sur- 1 + veiller < Latin vigilāre to watch; vigil ) + -ance -ance

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Goriunova, a cultural theorist and digital curator based in London, examines how these constructed figures and abstractions shape surveillance, governance and everyday life.

From Los Angeles Times

The company said this month it would explore a deal with Massachusetts-based Ondas Holdings to produce systems for drone defense, surveillance and reconnaissance in Europe.

From The Wall Street Journal

Police publicly released a blurry snapshot of a rotund man in a dark jacket and hat, and the surveillance footage, sparking a flood of online speculation.

From The Wall Street Journal

Soon, a systems malfunction foils the team’s surveillance of their targeted compound.

From The Wall Street Journal

A Los Angeles County resident is still looking for her missing cat after an Amazon delivery driver was seen on surveillance video appearing to take the animal from her home earlier this month.

From Los Angeles Times