diligence vs exertion

diligence and exertion both are nouns.

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

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

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

diligence (noun)	exertion (noun)
a diligent effort	use of physical or mental energy; hard work
persevering determination to perform a task
conscientiousness in paying proper attention to a task; giving the degree of care required in a given situation