come around vs come about

come around and come about both are verbs.

Word	Noun	Adjective	Verb	Adverb
come around	No	No	Yes	No
come about	No	No	Yes	No

As verbs, come about is a hypernym of come around; that is, come about is a word with a broader meaning than come around:

Other hypernyms of come around include fall out, go on, hap, happen, occur, pass, pass off, take place.

come around (verb)	come about (verb)
happen regularly	come to pass
change one's position or opinion