George Orwell 's novel Nineteen Eighty-Four portrays a fictional totalitarian surveillance society with a very simple mass surveillance system consisting of human operatives, informants, and …

The meaning of SURVEILLANCE is close watch kept over someone or something (as by a detective); also : supervision. How to use surveillance in a sentence.

SURVEILLANCE definition: 1. the careful watching of a person or place, especially by the police or army, because of a crime…. Learn more.

3 天之前 · New tools allow law enforcement agencies to track us at an unimaginable scale.

Surveillance definition: a watch kept over a person, group, etc., especially over a suspect, prisoner, or the like.. See examples of SURVEILLANCE used in a sentence.

Definition of surveillance noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

surveillance: Close observation of a person or group, especially one under suspicion.

Discover everything about the word "SURVEILLANCE" in English: meanings, translations, synonyms, pronunciations, examples, and grammar insights - all in one comprehensive guide.

sur•veil•lance (sərˈveɪ ləns, -ˈveɪl yəns) n. 1. a watch kept over someone or something, esp. over a suspect, prisoner, etc.: under police surveillance. 2. supervision or superintendence.

Modern security uses different types of surveillance for a well-rounded security strategy. Learn about the 6 surveillance methods and their uses in the industry.