1. Pool Fire: A fire that occurs when a flammable liquid spills and ignites in an area, creating a burning pool of liquid. The flame spreads across the surface of the liquid and is typically characterized by high heat and radiant energy.


2. Jet Fire: A type of fire that results from the combustion of flammable gases or liquids that are released from a pressurized system, forming a high-velocity jet flame. Jet fires can be intense and cause significant localized damage.


3. Flashover: The sudden ignition of all combustibles in a room or confined space due to the thermal radiation from the fire. It typically occurs when the room temperature reaches around 500–600°C, leading to rapid fire spread.


4. BLEVE (Boiling Liquid Expanding Vapor Explosion): An explosion caused by the rupture of a pressurized vessel containing a liquid that has reached temperatures above its boiling point. The sudden release of vapor and liquid can result in an intense explosion and fireball.


5. Flashback: The phenomenon where a flame travels back through a flammable vapor or gas mixture, reaching the source of the leak or flammable substance. It occurs when the velocity of the flame is greater than the speed of the escaping gas.


6. Explosion: A violent release of energy caused by the rapid expansion of gases, often from chemical reactions or the release of pressurized gas. Explosions can produce high-pressure shockwaves, heat, and shrapnel.


7. Fireball: A large, rapidly expanding ball of fire that occurs during an explosion, particularly in fuel-air or BLEVE incidents. Fireballs are characterized by their intense heat and radiant energy.


8. Blastwave: The pressure wave generated by an explosion that moves outward from the explosion site at high speed. The wave can cause significant structural damage and is often followed by a lower-pressure suction wave.


9. Backdraft: A phenomenon that occurs when a fire in an enclosed space consumes all the available oxygen, then re-ignites explosively when fresh air is introduced. It is highly dangerous for firefighters and can cause sudden fire escalation.


10. Flashfire: A sudden, short-duration fire that spreads rapidly through a combustible atmosphere, such as a vapor cloud, without generating significant overpressure (unlike an explosion). Flashfires are typically limited to the immediate area of the fuel source.

11. Flash Point: The lowest temperature at which a liquid gives off enough vapor to form a flammable mixture with air near its surface. At this temperature, the vapor can ignite but the fire does not sustain itself. 


12. Fire Point: The temperature at which a liquid produces enough vapor to sustain combustion after ignition. It is usually a few degrees higher than the flash point.


13. Autoignition Temperature: The temperature at which a material spontaneously ignites without an external ignition source, like a spark or flame.


Ascending Order:

- Flash Point < Fire Point < Autoignition Temperature