Noun

• S: (n) combustion, burning (a process in which a substance reacts with oxygen to give heat and light)
• direct hyponym / full hyponym
• S: (n) deflagration (combustion that propagates through a gas or along the surface of an explosive at a rapid rate driven by the transfer of heat)
• S: (n) fire, flame, flaming (the process of combustion of inflammable materials producing heat and light and (often) smoke) "fire was one of our ancestors' first discoveries"
• S: (n) blaze, blazing (a strong flame that burns brightly) "the blaze spread rapidly"
• S: (n) flare (a sudden burst of flame)
• S: (n) ignition (the process of initiating combustion or catching fire)
• S: (n) spontaneous combustion (ignition of a substance (as oily rags) resulting from an internal oxidation process)
• S: (n) internal combustion (the combustion of fuel inside a cylinder (as in an internal-combustion engine))
• direct hypernym / inherited hypernym / sister term
• derivationally related form
• S: (n) combustion (a state of violent disturbance and excitement) "combustion grew until revolt was unavoidable"
• S: (n) burning, combustion (the act of burning something) "the burning of leaves was prohibited by a town ordinance"