decision vs outcome

decision and outcome both are nouns.

Word	Noun	Adjective	Verb	Adverb
decision	Yes	No	No	No
outcome	Yes	No	No	No

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

Other hypernyms of decision include final result, result, resultant, termination.

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

Other hypernyms of decision include final result, result, resultant, termination.

decision (noun)	outcome (noun)
the act of making up your mind about something	something that results
the trait of resoluteness as evidenced by firmness of character or purpose	a phenomenon that follows and is caused by some previous phenomenon
a position or opinion or judgment reached after consideration
the outcome of a game or contest
(boxing) a victory won on points when no knockout has occurred