come around vs come round

come around and come round both are verbs.

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

As verbs, come around and come round are synonyms defined as:

come around (verb)	come round (verb)
happen regularly	change one's position or opinion
change one's position or opinion