epilogue vs ending

epilogue and ending both are nouns.

Word	Noun	Adjective	Verb	Adverb
epilogue	Yes	No	No	No
ending	Yes	No	No	No

As nouns, ending is a hypernym of epilogue; that is, ending is a word with a broader meaning than epilogue:

Other hypernyms of epilogue include close, closing, conclusion, end.

As nouns, ending is a hypernym of epilogue; that is, ending is a word with a broader meaning than epilogue:

epilogue: a short speech (often in verse) addressed directly to the audience by an actor at the end of a play
ending: the last section of a communication

Other hypernyms of epilogue include close, closing, conclusion, end.

epilogue (noun)	ending (noun)
a short passage added at the end of a literary work	the act of ending something
a short speech (often in verse) addressed directly to the audience by an actor at the end of a play	the end of a word (a suffix or inflectional ending or final morpheme)
	the last section of a communication
	event whose occurrence ends something
	the point in time at which something ends