decision vs decide

decision is a noun but decide is not a noun.

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

decision (noun)	decide (noun)
the act of making up your mind about something
the trait of resoluteness as evidenced by firmness of character or purpose
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

decision (verb)	decide (verb)
	reach, make, or come to a decision about something
	bring to an end; settle conclusively
	cause to decide
	influence or determine