diligence vs effort

diligence and effort both are nouns.

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

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

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

diligence (noun)	effort (noun)
a diligent effort	earnest and conscientious activity intended to do or accomplish something
persevering determination to perform a task	use of physical or mental energy; hard work
conscientiousness in paying proper attention to a task; giving the degree of care required in a given situation	a notable achievement
	a series of actions advancing a principle or tending toward a particular end