sexual activity vs excite

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

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

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

sexual 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