Surveillance is the systematic observation and monitoring of a person, population, or location, with the purpose of information-gathering, influencing, managing, or directing. [1][2] It is widely …

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: a watch kept over a person, group, etc., especially over a suspect, prisoner, or the like. See examples of surveillance used 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.

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

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.

Aug 28, 2025 · Surveillance involves the close observation of individuals, groups, or areas to gather information. This practice can be conducted openly, with the knowledge of those being …

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

Apr 3, 2025 · Surveillance refers to the close monitoring or observation of individuals, activities, or environments for the purpose of gathering information, ensuring security, or detecting any …