struggle vs effort

struggle and effort both are nouns.

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

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

Other hypernyms of struggle include elbow grease, exertion, sweat, travail.

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

struggle: an energetic attempt to achieve something
effort: earnest and conscientious activity intended to do or accomplish something

Other hypernyms of struggle include attempt, endeavor, endeavour, try.

struggle (noun)	effort (noun)
strenuous effort	earnest and conscientious activity intended to do or accomplish something
an energetic attempt to achieve something	use of physical or mental energy; hard work
an open clash between two opposing groups (or individuals)	a notable achievement
	a series of actions advancing a principle or tending toward a particular end

struggle (verb)	effort (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