What is another word for Defence System?
Pronunciation: [dɪfˈɛns sˈɪstəm] (IPA) 
The term "defence system" is a common phrase used to describe a strategy or mechanism created to protect against threats or attacks. There are different synonyms for defence systems that can be used depending on the context or industry. For example, in the military, "security apparatus" or "military defence" are at times used as substitutes. In cybersecurity, "firewall" or "antivirus" is used as synonyms for defence system. In scientific circles and medical fields, "immune system" is also used to imply defence mechanism. Ultimately, all these different names imply a system that is designed to identify and repel threats.
