Real Dictionary

fire burning, heat, or enthusiasm
uncountable noun: Fire is the hot, bright flames produced by things that are burning.

fire dismissal
verb: If an employer fires you, they dismiss you from your job.

fire in American English
the active principle of burning, characterized by the heat and light of combustion
noun: a state, process, or instance of combustion in which fuel or other material is ignited and combined with oxygen, giving off light, heat, and flame

fire in British English
noun: the state of combustion in which inflammable material burns, producing heat, flames, and often smoke

fire in Chemical Engineering
noun: A fire is a chemical reaction between an oxidant and a flammable substance where some of the released energy is used to make the reaction continue.

fire shooting or attacking
verb: If someone fires a gun or a bullet, or if they fire, a bullet is sent from a gun that they are using.