#2,483
Common
#10,909
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surveillance camera; security camera
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EN Closed-circuit television (CCTV), also known as video surveillance, is the use of video cameras to transmit a signal to a specific place, on a limited set of...More
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#28,152
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supervised; under surveillance
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#37,914
#42,057
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guardian
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#56,471
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watchtower
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#59,759
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surveillance network
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#63,208
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surveillance system; monitoring system
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#78,873
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lookout post; observation point
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#85,203
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surveillance monitor
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