chiller vs excitement

chiller and excitement both are nouns.

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

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

Other hypernyms of chiller include excitation.

chiller (noun)	excitement (noun)
excitation that makes your hair stand up or that chills your bones	something that agitates and arouses
	disturbance usually in protest
	the feeling of lively and cheerful joy
	the state of being emotionally aroused and worked up