anuria vs sickness

anuria and sickness both are nouns.

Word	Noun	Adjective	Verb	Adverb
anuria	Yes	No	No	No
sickness	Yes	No	No	No

As nouns, sickness is a hypernym of anuria; that is, sickness is a word with a broader meaning than anuria:

anuria: inability to urinate
sickness: impairment of normal physiological function affecting part or all of an organism

Other hypernyms of anuria include illness, malady, unwellness.

anuria (noun)	sickness (noun)
inability to urinate	impairment of normal physiological function affecting part or all of an organism
	the state that precedes vomiting
	defectiveness or unsoundness