come off vs break off

come off and break off both are verbs.

Word	Noun	Adjective	Verb	Adverb
come off	No	No	Yes	No
break off	No	No	Yes	No

As verbs, come off and break off are synonyms defined as:

Other synonyms of come off include break away, chip, chip off.

come off (verb)	break off (verb)
happen in a particular manner	prevent completion
come to be detached	interrupt before its natural or planned end
break off (a piece from a whole)	break a small piece off from
	break off (a piece from a whole)
	break a piece from a whole