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security system

security system

60 3.3
A set of devices like cameras and sensors that warn about intruders
  • noun
  • /sɪˈkjʊrɪti ˈsɪstəm/
translation icon : sistema de seguridad
  • The apartment complex installed a new security system to protect residents from unauthorized entry.

They are the number one rated home security system and they're great.

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Examples

  • The victim's home had an elaborate security system, which was apparently foiled by the intruders.

  • It's got one of the most elaborate security systems in Europe.

  • A home like this will have an advanced security system.

  • We got a warning signal from the security system.

  • The only way to avoid these problems is to protect client data with security systems.

    Academic text (2003)
  • Ring is a powerful, affordable home security system that you install yourself.

  • If you have a home security system, in the last five or ten years you've been able to tie that into more data.

  • This is the footage from Romano's security system.

  • There were no cameras or other security systems inside the room, which was accessed by a swipe card.

    Academic text (2012)
  • You don’t keep ten million dollars in an office without some advanced security system.

Synonyms

security measures
vssecurity system
40 3.7

Actions and devices that stop people from spying, stealing, or damaging property

emphasizes electronic detection and alerting rather than general preventive actions
alarm system
vssecurity system
36 2.5

A group of devices that warns you automatically about danger like fire or a break-in

focuses on electronic equipment that detects unauthorized entry and notifies people or police
security measure
vssecurity system
1 3.6

A device or method that detects break-ins and sounds an alarm

focuses on electronic equipment that detects intrusions and alerts occupants or authorities

Antonyms

156 5.1

A state of being easily harmed physically or emotionally

31 3.6

A lack of safety that makes people or places open to danger

How Protective

security system
60 3.3
alarm system
36 2.5
sensor
898 3.4

Surface Forms

Morphology

security + system

The meaning 'a set of devices or measures for protection' is directly and transparently derivable from combining 'security' (measures to protect) with 'system' (a collection of interacting components). This is a regular noun–noun compound pattern that is cross-linguistically common and composed of relatively high-frequency words, so a B1 learner who knows both constituents will understand the MWE.

Etymology

Security system for homes comes from the image of a house with doors and windows watched by sensors, alarms and guards: security means keeping people and things safe and a system is devices that work together. That's why it means 'a set of devices that detect someone entering without permission and raise an alarm'.