break off vs discontinue

break off and discontinue both are verbs.

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

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

Other synonyms of break off include break, stop.

break off (verb)	discontinue (verb)
prevent completion	prevent completion
interrupt before its natural or planned end	put an end to a state or an activity
break a small piece off from	come to or be at an end
break off (a piece from a whole)
break a piece from a whole