trigger vs fire

trigger and fire both are nouns.

Word	Noun	Adjective	Verb	Adverb
trigger	Yes	No	Yes	No
fire	Yes	No	Yes	No

trigger (noun)	fire (noun)
an act that sets in motion some course of events	the act of firing weapons or artillery at an enemy
lever that activates the firing mechanism of a gun	a fireplace in which a relatively small fire is burning
a device that activates or releases or causes something to happen	intense adverse criticism
	the event of something burning (often destructive)
	a severe trial
	feelings of great warmth and intensity
	the process of combustion of inflammable materials producing heat and light and (often) smoke
	fuel that is burning and is used as a means for cooking
	once thought to be one of four elements composing the universe (Empedocles), associated with the humour bile

trigger (verb)	fire (verb)
release or pull the trigger on	bake in a kiln so as to harden
put in motion or move to act	destroy by fire
	start or maintain a fire in
	become ignited
	cause to go off
	start firing a weapon
	go off or discharge
	generate an electrical impulse
	call forth (emotions, feelings, and responses)
	drive out or away by or as if by fire
	provide with fuel
	terminate the employment of; discharge from an office or position