butterfly effect vs outcome

butterfly effect and outcome both are nouns.

Word	Noun	Adjective	Verb	Adverb
butterfly effect	Yes	No	No	No
outcome	Yes	No	No	No

As nouns, outcome is a hypernym of butterfly effect; that is, outcome is a word with a broader meaning than butterfly effect:

butterfly effect: the phenomenon whereby a small change at one place in a complex system can have large effects elsewhere, e.g., a butterfly flapping its wings in Rio de Janeiro might change the weather in Chicago
outcome: a phenomenon that follows and is caused by some previous phenomenon

Other hypernyms of butterfly effect include consequence, effect, event, issue, result, upshot.

butterfly effect (noun)	outcome (noun)
the phenomenon whereby a small change at one place in a complex system can have large effects elsewhere, e.g., a butterfly flapping its wings in Rio de Janeiro might change the weather in Chicago	something that results
	a phenomenon that follows and is caused by some previous phenomenon