Meaning of the word surveillance in English

What does surveillance mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

surveillance

US /sɚˈveɪ.ləns/
UK /sɚˈveɪ.ləns/
"surveillance" picture

Noun

1.

close observation, especially of a suspected spy or criminal

Example:
The police kept the suspect under constant surveillance.
CCTV cameras are used for public surveillance.
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