debriefing vs interrogation

debriefing and interrogation both are nouns.

Word	Noun	Adjective	Verb	Adverb
debriefing	Yes	No	No	No
interrogation	Yes	No	No	No

As nouns, interrogation is a hypernym of debriefing; that is, interrogation is a word with a broader meaning than debriefing:

Other hypernyms of debriefing include examination, interrogatory, account, report.

debriefing (noun)	interrogation (noun)
report of a mission or task	formal systematic questioning
	a sentence of inquiry that asks for a reply
	an instance of questioning
	a transmission that will trigger an answering transmission from a transponder