American English

Definition of surveillance noun from the Oxford Advanced American Dictionary

     

    surveillance

     noun
    noun
    NAmE//sərˈveɪləns//
     
    [uncountable]
     
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  1. 1the act of carefully watching a person suspected of a crime or a place where a crime may be committed synonym observation
  2. 2 The police are keeping the suspects under constant surveillance. surveillance cameras/equipment
See the Oxford Advanced Learner's Dictionary entry: surveillance