halftime vs interruption

halftime and interruption both are nouns.

Word	Noun	Adjective	Verb	Adverb
halftime	Yes	No	No	No
interruption	Yes	No	No	No

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

halftime: an intermission between the first and second half of a game
interruption: a time interval during which there is a temporary cessation of something

Other hypernyms of halftime include break, intermission, pause, suspension.

halftime (noun)	interruption (noun)
an intermission between the first and second half of a game	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