sex activity vs excite

sex activity is a noun but excite is not a noun.

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

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

sex activity (verb)	excite (verb)
	act as a stimulant
	produce a magnetic field in
	raise to a higher energy level
	stir the feelings, emotions, or peace of
	to evoke sexual feelings
	arouse or elicit a feeling
	cause to be agitated, excited, or roused
	stir feelings in