Dictionary.com
Thesaurus.com
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.

At this stage, the best gifts demonstrate listening but not surveillance.

From The Wall Street Journal

For many years, surveillance and censorship were haphazard and unevenly enforced.

From The Wall Street Journal

The California Federation of Labor Unions has sponsored a package of bills to address AI’s risks, including job loss and surveillance.

From Los Angeles Times

Historically, the most potent strategies for doing so relies less on troops than on finance—through sanctions, financial surveillance, and dollar dominance.

From Barron's

"Current surveillance indicators do not show unusual increases in reports of vomiting in children under the age of one for this time of year," she added.

From BBC