final result vs ending

final result and ending both are nouns.

Word	Noun	Adjective	Verb	Adverb
final result	Yes	No	No	No
ending	Yes	No	No	No

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

Other hypernyms of final result include conclusion, finish.

final result (noun)	ending (noun)
something that results	the act of ending something
	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