select vs make up one's mind

select is an adjective but make up one's mind is not an adjective.

Word	Noun	Adjective	Verb	Adverb
select	No	Yes	Yes	No
make up one's mind	No	No	Yes	No

As verbs, make up one's mind is a hypernym of select; that is, make up one's mind is a word with a broader meaning than select:

Other hypernyms of select include decide, determine.

select (adjective)	make up one's mind (adjective)
selected or chosen for special qualifications
of superior grade

select (verb)	make up one's mind (verb)
pick out, select, or choose from a number of alternatives	reach, make, or come to a decision about something