struggle vs strife

struggle and strife both are nouns.

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

As nouns, strife is a hyponym of struggle; that is, strife is a word with a more specific, narrower meaning than struggle:

struggle (noun)	strife (noun)
strenuous effort	bitter conflict; heated often violent dissension
an energetic attempt to achieve something	lack of agreement or harmony
an open clash between two opposing groups (or individuals)

struggle (verb)	strife (verb)
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