energise vs sex activity

energise is not a noun while sex activity is a noun.

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

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

energise (verb)	sex activity (verb)
cause to be alert and energetic
raise to a higher energy level