breaking off vs interruption

breaking off and interruption both are nouns.

Word	Noun	Adjective	Verb	Adverb
breaking off	Yes	No	No	No
interruption	Yes	No	No	No

As nouns, interruption is a hypernym of breaking off; that is, interruption is a word with a broader meaning than breaking off:

Other hypernyms of breaking off include break, disruption, gap.

breaking off (noun)	interruption (noun)
an instance of sudden interruption	an act of delaying or interrupting the continuity
	some abrupt occurrence that interrupts an ongoing activity
	a time interval during which there is a temporary cessation of something