select vs decide

select is an adjective but decide is not an adjective.

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

As verbs, decide is a hypernym of select; that is, decide is a word with a broader meaning than select:

Other hypernyms of select include determine, make up one's mind.

select (adjective)	decide (adjective)
selected or chosen for special qualifications
of superior grade

select (verb)	decide (verb)
pick out, select, or choose from a number of alternatives	reach, make, or come to a decision about something
	bring to an end; settle conclusively
	cause to decide
	influence or determine