upshot vs event

upshot and event both are nouns.

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

As nouns, upshot and event are synonyms defined as:

upshot and event: a phenomenon that follows and is caused by some previous phenomenon

Other synonyms of upshot include consequence, effect, issue, outcome, result.

upshot (noun)	event (noun)
a phenomenon that follows and is caused by some previous phenomenon	something that happens at a given place and time
	a phenomenon located at a single point in space-time; the fundamental observational entity in relativity theory
	a phenomenon that follows and is caused by some previous phenomenon
	a special set of circumstances