interrupt vs break off

interrupt is a noun but break off is not a noun.

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

As verbs, break off is a hyponym of interrupt; that is, break off is a word with a more specific, narrower meaning than interrupt:

Other hyponyms of interrupt include hold on, stop, break short, cut short, freeze, suspend.

As verbs, break off is a hypernym of interrupt; that is, break off is a word with a broader meaning than interrupt:

Other hypernyms of interrupt include break, discontinue, stop.

interrupt (noun)	break off (noun)
a signal that temporarily stops the execution of a program so that another procedure can be carried out

interrupt (verb)	break off (verb)
terminate or end	prevent completion
destroy the peace or tranquility of	interrupt before its natural or planned end
interfere in someone else's activity	break a small piece off from
make a break in	break off (a piece from a whole)
	break a piece from a whole