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.

Looking for smart home security products? Amazon.com has a wide selection of products to monitor your home with your voice and smartphone.

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.

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

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

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

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.

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 …

The act of observing persons or groups either with notice or their knowledge (overt surveillance) or without their knowledge (covert surveillance). Intrusive surveillance by private citizens may give rise …