outgrowth vs event

outgrowth and event both are nouns.

Word	Noun	Adjective	Verb	Adverb
outgrowth	Yes	No	No	No
event	Yes	No	No	No

As nouns, event is a hypernym of outgrowth; that is, event is a word with a broader meaning than outgrowth:

Other hypernyms of outgrowth include consequence, effect, issue, outcome, result, upshot.

outgrowth (noun)	event (noun)
a natural prolongation or projection from a part of an organism either animal or plant	something that happens at a given place and time
the gradual beginning or coming forth	a phenomenon located at a single point in space-time; the fundamental observational entity in relativity theory
a natural consequence of development	a phenomenon that follows and is caused by some previous phenomenon
	a special set of circumstances