feud vs struggle

feud and struggle both are nouns.

Word	Noun	Adjective	Verb	Adverb
feud	Yes	No	Yes	No
struggle	Yes	No	Yes	No

As nouns, struggle is a hypernym of feud; that is, struggle is a word with a broader meaning than feud:

Other hypernyms of feud include battle, conflict.

As verbs, struggle is a hypernym of feud; that is, struggle is a word with a broader meaning than feud:

Other hypernyms of feud include contend, fight.

feud (noun)	struggle (noun)
a bitter quarrel between two parties	strenuous effort
	an energetic attempt to achieve something
	an open clash between two opposing groups (or individuals)

feud (verb)	struggle (verb)
carry out a feud	be engaged in a fight; carry on a fight
	to exert strenuous effort against opposition
	climb awkwardly, as if by scrambling
	make a strenuous or labored effort