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 used by …

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.

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.

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

Surveillance is the intentional and methodical observation of environments, activities, or people to spot potential risks and ensure safety. It provides essential awareness that enables trained security …

Feb 10, 2026 · Surveillance is the systematic monitoring and observation of people, places, activities, or data to gather information, enhance security, manage behavior, or detect threats.

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 observed, or …

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

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

Surveillance is the act of observing another in order to gather evidence. Surveillance is one of the most common methods law enforcement officials use to investigate suspects and gather evidence.