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surveillance

noun
 
🔊/sɜːˈveɪləns/
🔊/sɜːrˈveɪləns/
[uncountable]
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  1. the act of carefully watching a person suspected of a crime or a place where a crime may be committed（对犯罪嫌疑人或可能发生犯罪的地方的）监视 synonym observation
    • The police are keeping the suspects under constant surveillance.警方正对嫌疑人实施不间断监视。🔊🔊
    • surveillance cameras/equipment监视摄像机／设备
    Extra Examples
    • The suspects are under police surveillance.嫌疑人在警方的监视之下。
    • The images were covertly captured on surveillance tape.监控录像带偷偷记录下了这些影像。
    Topics War and conflictc1, Crime and punishmentc1
    Oxford Collocations Dictionaryadjective
    • close
    • constant
    • regular
    • …
    verb + surveillance
    • be under
    • keep somebody/​something under
    • place somebody/​something under
    • …
    surveillance + noun
    • camera
    • device
    • equipment
    • …
    See full entry
    Word Originearly 19th cent.: from French, from sur- ‘over’ + veiller ‘watch’ (from Latin vigilare ‘keep watch’).