victory vs success

victory and success both are nouns.

Word	Noun	Adjective	Verb	Adverb
victory	Yes	No	No	No
success	Yes	No	No	No

As nouns, success is a hypernym of victory; that is, success is a word with a broader meaning than victory:

Other hypernyms of victory include conclusion, ending, finish.

victory (noun)	success (noun)
a successful ending of a struggle or contest	an attainment that is successful
	an event that accomplishes its intended purpose
	a person with a record of successes
	a state of prosperity or fame