fight vs struggle

fight and struggle both are nouns.

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

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

Other hypernyms of fight include battle, conflict.

As verbs, fight and struggle are synonyms defined as:

Other synonyms of fight include contend.

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

Other hypernyms of fight include contend, fight.

As verbs, fight and struggle are synonyms defined as:

fight (noun)	struggle (noun)
a hostile meeting of opposing military forces in the course of a war	strenuous effort
the act of fighting; any contest or struggle	an energetic attempt to achieve something
a boxing or wrestling match	an open clash between two opposing groups (or individuals)
an aggressive willingness to compete
an intense verbal dispute

fight (verb)	struggle (verb)
be engaged in a fight; carry on a fight	be engaged in a fight; carry on a fight
fight against or resist strongly	to exert strenuous effort against opposition
make a strenuous or labored effort	climb awkwardly, as if by scrambling
exert oneself continuously, vigorously, or obtrusively to gain an end or engage in a crusade for a certain cause or person; be an advocate for	make a strenuous or labored effort