surveillance

noun

Synonyms of surveillance
: close watch kept over someone or something (as by a detective)

Examples of surveillance in a Sentence

government surveillance of suspected terrorists The bank robbery was recorded by surveillance video cameras.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Later that night, she was seen in surveillance footage making withdrawals from an ATM — and hasn't been heard from since. Aya Al-Hakim, PEOPLE, 21 Apr. 2026 The vessel can support mine countermeasures, anti-submarine warfare, electronic warfare, and maritime surveillance. Sujita Sinha, Interesting Engineering, 20 Apr. 2026 Bank records obtained by CBS 12, through a subpoena, show that Kaiser was allegedly captured on surveillance footage at a JPMorgan Chase branch handing a check falsely attributed to the museum to a teller and then completing the transaction with her debit card. Tessa Solomon, ARTnews.com, 20 Apr. 2026 The surveillance images show a group of nine individuals – some wearing hoodies and facial coverings – walking on a sidewalk, with some of the suspects’ faces visible to the camera. Julia Bonavita, FOXNews.com, 20 Apr. 2026 See All Example Sentences for surveillance

Word History

Etymology

French, from surveiller to watch over, from sur- + veiller to watch, from Old French veillier, from Latin vigilare, from vigil watchful — more at vigil

First Known Use

1802, in the meaning defined above

Time Traveler
The first known use of surveillance was in 1802

Browse Nearby Words

Cite this Entry

“Surveillance.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.grautoblog.com/dictionary/surveillance. Accessed 24 Apr. 2026.

Kids Definition

surveillance

noun
sur·​veil·​lance sər-ˈvā-lən(t)s How to pronounce surveillance (audio)
also -ˈvāl-yən(t)s
or -ˈvā-ən(t)s
: close watch
under surveillance

Medical Definition

surveillance

noun
sur·​veil·​lance
sər-ˈvā-lən(t)s also -ˈvāl-yən(t)s or -ˈvā-ən(t)s
: close and continuous observation or testing
serological surveillance
see immune surveillance

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