struggle vs strive

struggle is a noun but strive is not a noun.

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

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

Other hypernyms of struggle include endeavor, endeavour.

struggle (noun)	strive (noun)
strenuous effort
an energetic attempt to achieve something
an open clash between two opposing groups (or individuals)

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