Definition

Noun: A surveillance system is a coordinated set of devices and procedures designed for the continuous, systematic observation of a place, person, or group, typically for the purpose of influencing, managing, directing, or protecting them. Its core function is to gather information through monitoring.

Usage

A surveillance system is used to describe the entire apparatus for monitoring. It is often discussed in contexts of security, law enforcement, safety, and data collection. * The bank upgraded its surveillance system to include high-definition cameras and motion sensors. * Public health officials implemented a new surveillance system to track the spread of the virus. * The building's surveillance system recorded the entire incident.

Advanced Usage

• Electronic surveillance system: A system that uses electronic devices like cameras, microphones, or data interceptors.
  • The embassy's electronic surveillance system was compromised.
• Under surveillance: A state of being watched by such a system. (This is a related common phrase, not a variant of the target word itself).
  • The suspect's house was placed under surveillance.

Variants and Related Words

• Surveillance (n): The act of observing or the condition of being observed. This is the root concept.
  • Constant surveillance is a feature of life in the secure facility.
• CCTV system (n): Closed-circuit television system, a common type of visual surveillance system.
• Monitoring system (n): A broader term that can include surveillance but also applies to technical processes, networks, or patient health.

Synonyms

• Observation system: A more neutral term focusing on the act of watching.
• Monitoring network: Emphasizes interconnected components.
• Security system: A broader term where surveillance is often a key component.

Related Phrases

• Surveillance camera: A key component of many visual surveillance systems.
• Surveillance footage: The video recorded by a surveillance system.
• Mass surveillance: The pervasive surveillance of an entire or substantial population.

Noun

1. a closed-circuit television system used to maintain close observation of a person or group