interjection vs interruption

interjection and interruption both are nouns.

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

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

interjection: the action of interjecting or interposing an action or remark that interrupts
interruption: an act of delaying or interrupting the continuity

Other hypernyms of interjection include break, disruption, gap.

interjection (noun)	interruption (noun)
the action of interjecting or interposing an action or remark that interrupts	an act of delaying or interrupting the continuity
an abrupt emphatic exclamation expressing emotion	some abrupt occurrence that interrupts an ongoing activity
	a time interval during which there is a temporary cessation of something