Firefighter Glossary: Browse by Category
300+ practical definitions organized by operational domain — Fireground tactics, EMS/Medical, Hazmat/CBRN, and SCBA/Apparatus. Search a term or open a hub below.
351Published terms
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Browse all terms on the Glossary (A–Z). Visit Tools Hub.
Glossary Hubs
Browse terms by operational domain. Each hub links to relevant tools.
Fireground Operations
Core tactics, command, suppression, ventilation, search, and water supply terminology used on the fireground.
EMS & Medical
Patient care, assessment, interventions, triage, and EMS system terms commonly used by firefighter/medics.
Hazmat & CBRN
Hazardous materials, decon, isolation zones, UN/ERG concepts, and CBRN terminology.
Apparatus, Gear & SCBA
PPE, SCBA, apparatus components, hose, nozzles, tools, and operational equipment terminology.
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