come through vs defeat

come through is not a noun while defeat is a noun.

Word	Noun	Adjective	Verb	Adverb
come through	No	No	Yes	No
defeat	Yes	No	Yes	No

As verbs, defeat is a hypernym of come through; that is, defeat is a word with a broader meaning than come through:

Other hypernyms of come through include get the better of, overcome.

come through (noun)	defeat (noun)
	an unsuccessful ending to a struggle or contest
	the feeling that accompanies an experience of being thwarted in attaining your goals

come through (verb)	defeat (verb)
penetrate	win a victory over
succeed in reaching a real or abstract destination after overcoming problems	thwart the passage of
attain success or reach a desired goal
continue in existence after (an adversity, etc.)