volcano vs eruption

volcano and eruption both are nouns.

Word	Noun	Adjective	Verb	Adverb
volcano	Yes	No	No	No
eruption	Yes	No	No	No

volcano (noun)	eruption (noun)
a mountain formed by volcanic material	the sudden occurrence of a violent discharge of steam and volcanic material
a fissure in the earth's crust (or in the surface of some other planet) through which molten lava and gases erupt	a sudden very loud noise
	the emergence of a tooth as it breaks through the gum
	a sudden violent spontaneous occurrence (usually of some undesirable condition)
	(of volcanoes) pouring out fumes or lava (or a deposit so formed)
	symptom consisting of a breaking out and becoming visible