sex activity vs excitement

sex activity and excitement both are nouns.

Word	Noun	Adjective	Verb	Adverb
sex activity	Yes	No	No	No
excitement	Yes	No	No	No

sex activity (noun)	excitement (noun)
activities associated with sexual intercourse	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