- AFFF
- AFT
- AIT
- ASD
- ASET
- AST
- Acceptance criteria
- Adiabatic flame temperature
- Adiabatic surface temperature
- Aerodynamic area
- Aerodynamic free area
- Affiliation behaviour
- Affiliative behavior
- Affiliative behaviour
- Air sampling smoke detection
- Alpert's correlation
- Alpert's correlations
- Alpert ceiling jet correlation
- Alpert correlation
- Alpert correlations
- Angle factor
- Aqueous film-forming foam
- Aqueous film-forming foam (AFFF)
- Aqueous film forming foam
- Aspirating smoke detection
- Aspirating smoke detector
- Atrium smoke control
- Auto-ignition temperature
- Autoignition temperature
- Automatic wet pipe sprinkler system
- Available safe egress time
- Available safe egress time (ASET)
- Available safe evacuation time
- BLEVE
- Backdraft
- Balcony spill plume
- Battery fire
- Beam detector
- Beam smoke detector
- Biot number
- Boiling liquid expanding vapor explosion
- Boiling liquid expanding vapour explosion
- Building fire risk analysis
- Building regulations
- Buoyancy
- Burning brands
- Burning rate
- Bushfire
- CCF
- CFAST
- CFD
- CHF
- Calorific value
- Car park fire
- Carbon dioxide
- Carbon monoxide
- Carpark fire
- Catenary action
- Cavity barrier
- Cavity barriers
- Ceiling jet
- Ceiling jet flow
- Cellulosic fire curve
- Charring rate
- Chemical explosion
- Chemical heat of combustion
- Chimney effect
- Classes of fire
- Classes of fires
- Clean agent system
- Combination detector
- Combustibility
- Combustion
- Combustion explosion
- Common-cause failure
- Common-mode failure
- Common cause failure
- Common mode failure
- Compartment fire
- Compartment overpressure
- Computational fluid dynamics
- Computational fluid dynamics (CFD)
- Concrete in fire
- Concrete spalling
- Conduction
- Cone calorimeter
- Configuration factor
- Consolidated Fire and Smoke Transport
- Controlled selective evacuation
- Convection
- Critical air velocity
- Critical application rate
- Critical heat flux
- Critical heat flux for ignition
- Critical steel temperature
- Critical velocity
- Critical water application rate
- DDT
- Deemed-to-satisfy provisions
- Defend-in-place
- Defend in place
- Deflagration
- Deflagration-to-detonation transition
- Deflagration index
- Deflagration index (KSt)
- Deflagration to detonation transition
- Deflagration venting
- Delay time to start
- Deluge sprinkler system
- Deluge system
- Design fire
- Design fire scenario
- Design occupant load
- Design scenario
- Detection time
- Detector activation time
- Detector response time
- Detonation
- Diffusion flame
- Diffusion flames
- Dimensionless heat release rate
- Disproportionate collapse
- Dry-pipe sprinkler system
- Dry and wet risers
- Dry pipe sprinkler system
- Dry pipe system
- Dry riser
- Dust deflagration
- Dust explosion
- Dust explosions
- ETA
- EV fire
- Effective cross-section method
- Effective cross-sectional area method
- Effective heat of combustion
- Effective opening area
- Effects of heat on people
- Egress capacity
- Electric car fire
- Electric vehicle fire
- Embers
- Emergency lighting
- Emergency voice communication system
- Emergency warning and intercommunication system
- Emissivity
- Emittance
- End-point criteria
- Engineering calculations
- Entrainment
- Equivalence ratio
- Equivalency
- Equivalent fire severity
- Equivalent time of exposure
- Escape signage
- Ethics in fire safety engineering
- Euroclass
- Euroclass system
- Euroclasses
- Eurocodes
- Evacuation
- Evacuation alarm system
- Evacuation elevator
- Evacuation initiation delay
- Evacuation lift
- Evacuation management strategy
- Evacuation modeling
- Evacuation modelling
- Evacuation of disabled people
- Evacuation of mobility-impaired occupants
- Evacuation of people with disabilities
- Evacuation strategies
- Evacuation strategy
- Event tree analysis
- Exit capacity
- Exit flow capacity
- Exitway
- Explosion
- Explosion relief
- Explosion vent
- Explosion venting
- Explosions
- Explosive limits
- Explosive spalling
- External flaming
- External vertical fire spread
- Extinguishing agent
- Extinguishing mechanism
- Extinguishing mechanisms
- F-N curve
- FDS
- FEC
- FED
- FEM
- FIC
- FLED
- FRA
- FTA
- Facade fire
- Fault tree
- Fault tree analysis
- Façade fire
- Fine water spray system
- Finite element analysis
- Finite element method
- Fire-fighting
- Fire-induced pressure
- Fire-isolated exit
- Fire-resistant glazing
- Fire Dynamics Simulator
- Fire Dynamics Simulator (FDS)
- Fire Froude number
- Fire alarm system
- Fire brands
- Fire brigade access
- Fire cause investigation
- Fire class
- Fire classes
- Fire compartmentation
- Fire curtain
- Fire curtains
- Fire damper
- Fire department access
- Fire development stages
- Fire door
- Fire dynamics
- Fire experience data
- Fire extinguisher
- Fire fighting
- Fire fighting water supply
- Fire gas explosion
- Fire hose reel
- Fire hydrant
- Fire hydrant system
- Fire incident data
- Fire investigation
- Fire load
- Fire load density
- Fire load energy density
- Fire loading
- Fire loss statistics
- Fire model
- Fire modeling
- Fire modelling
- Fire plume
- Fire protection strategy
- Fire reconstruction
- Fire resistance
- Fire resistance criteria
- Fire resistance test
- Fire resistance testing
- Fire resisting glazing
- Fire risk
- Fire risk analysis
- Fire risk assessment
- Fire risks
- Fire safety concepts tree
- Fire safety engineering
- Fire safety goals
- Fire safety management
- Fire safety objective
- Fire safety objectives
- Fire safety strategy
- Fire scenario
- Fire service access
- Fire service elevator
- Fire spread
- Fire spread between buildings
- Fire spread to adjacent buildings
- Fire statistics
- Fire strategy
- Fire suppression system
- Fire testing
- Fire tetrahedron
- Fire toxicity
- Fire triangle
- Fire wall
- Fire water supply
- Fireball
- Firebrand
- Firebrands
- Firefighter elevator
- Firefighter lift
- Firefighting
- Firefighting access
- Firefighting elevator
- Firefighting foam
- Firefighting lift
- Firefighting water supply
- Firestopping
- Flame
- Flame detector
- Flame extinction
- Flame extinguishment
- Flame height
- Flame radiation
- Flame retardant
- Flame spread
- Flammability limits
- Flammable limits
- Flash point
- Flashover
- Flashover criteria
- Flying brands
- Forensic fire reconstruction
- Forest fire
- Fractional effective concentration
- Fractional effective concentration (FEC)
- Fractional effective dose
- Fractional effective dose (FED)
- Fractional irritant concentration
- Froude modeling
- Froude modelling
- Froude scaling
- Fuel-controlled fire
- Fuel-limited fire
- Fuel controlled fire
- Full room involvement
- Fully developed fire
- GER
- Gaseous extinguishing system
- Gaseous fire extinguishing system
- Gaseous suppression system
- Geometric factor
- Global equivalence ratio
- Grid resolution
- Grid size
- Gross heat of combustion
- HCN
- HRRPUA
- HRR per unit area
- Haber's rule
- Hand calculation
- Hand calculations
- Hand extinguisher
- Heat capacity
- Heat detector
- Heat detector response time
- Heat flux
- Heat of combustion
- Heat release rate
- Heat release rate density
- Heat release rate per unit area
- Heat transfer
- Heskestad plume
- High-rise building