ignition vs burning

ignition and burning both are nouns.

Word	Noun	Adjective	Verb	Adverb
ignition	Yes	No	No	No
burning	Yes	Yes	No	No

As nouns, burning is a hypernym of ignition; that is, burning is a word with a broader meaning than ignition:

Other hypernyms of ignition include combustion.

ignition (noun)	burning (noun)
the act of setting something on fire	the act of burning something
the mechanism that ignites the fuel in an internal-combustion engine	execution by electricity
the process of initiating combustion or catching fire	execution by fire
	a form of torture in which cigarettes or cigars or other hot implements are used to burn the victim's skin
	a process in which a substance reacts with oxygen to give heat and light
	pain that feels hot as if it were on fire

ignition (adjective)	burning (adjective)
	of immediate import