fever vs excitement

fever and excitement both are nouns.

Word	Noun	Adjective	Verb	Adverb
fever	Yes	No	No	No
excitement	Yes	No	No	No

As nouns, excitement is a hypernym of fever; that is, excitement is a word with a broader meaning than fever:

Other hypernyms of fever include excitation, fervor, fervour, inflammation.

fever (noun)	excitement (noun)
a state of nervous excitement	something that agitates and arouses
a rise in the temperature of the body; frequently a symptom of infection	disturbance usually in protest
	the feeling of lively and cheerful joy
	the state of being emotionally aroused and worked up