fever vs inflammation

fever and inflammation both are nouns.

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

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

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

fever (noun)	inflammation (noun)
a state of nervous excitement	arousal to violent emotion
a rise in the temperature of the body; frequently a symptom of infection	the act of setting something on fire
	a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat
	the state of being emotionally aroused and worked up