designation vs decision

designation and decision both are nouns.

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

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

Other hypernyms of designation include conclusion, determination.

designation (noun)	decision (noun)
the act of putting a person into a non-elective position	the act of making up your mind about something
the act of designating or identifying something	the trait of resoluteness as evidenced by firmness of character or purpose
identifying word or words by which someone or something is called and classified or distinguished from others	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