Definitions:

1. A set of measures and tools designed to predict and mitigate the harm of natural and human-initiated disasters and emergencies. NOUN
   • Early warning systems for hurricanes can save lives by providing residents with enough time to evacuate or secure their homes.
2. A warning system that can be implemented as a chain of information communication systems and comprises sensors, event detection and decision subsystems for early identification of hazards. NOUN
   • The early warning system detected seismic activity, prompting a tsynami alert for the coastal areas.
3. Abbreviated EWS, is a framework designed to detect and provide timely alerts about potential hazards or threats, enabling individuals, communities, or organizations to take proactive measures to mitigate the impact. NOUN
   • Public health officials rely on early warning systems to monitor and respond to emerging infectious diseases.
4. Systems crucial for disaster risk reduction, national security, and public safety. NOUN
   • The government invested in a state-of-the-art early warning system to enhance national security against missile threats.

Synonyms:

• alert system
• hazard detection system
• preemptive warning system
• warning network