Guard
Guard noun - A person or group that watches over someone or something.
Security system and guard are semantically related in safety topic. In some cases you can use "Security system" instead a noun "Guard".
Security system
Security system noun - An electrical device that sets off an alarm when someone tries to break in.
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Synonyms for Security system
Guard and security system are semantically related in safety topic. Sometimes you can use "Guard" instead a noun phrase "Security system".
Mutual synonyms
Both terms in one sentence
- Cujo was a guard dog for Axion Labs that was put to sleep when they upgraded the security system and no longer needed him.
Source: Fan Fic / Harmless -
Electrified doors, a vicious guard dog, strange creatures in the basement, and a bizarrely extensive security system prevent them from leaving before the owners return.
Cite this Source
Security system and Guard. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/guard/security_system
Guard & Security system. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/guard/security_system>.
Security system or Guard. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/guard/security_system.
Google Ngram Viewer shows how "guard" and "security system" have occurred on timeline