ending vs triumph

ending and triumph both are nouns.

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

As nouns, triumph is a hyponym of ending; that is, triumph is a word with a more specific, narrower meaning than ending:

ending (noun)	triumph (noun)
the act of ending something	a successful ending of a struggle or contest
the end of a word (a suffix or inflectional ending or final morpheme)	the exultation of victory
the last section of a communication
event whose occurrence ends something
the point in time at which something ends