turn on vs sex activity

turn on is not a noun while sex activity is a noun.

Word	Noun	Adjective	Verb	Adverb
turn on	No	No	Yes	No
sex activity	Yes	No	No	No

turn on (noun)	sex activity (noun)
	activities associated with sexual intercourse

turn on (verb)	sex activity (verb)
become hostile towards
get high, stoned, or drugged
cause to operate by flipping a switch
to evoke sexual feelings
cause to be agitated, excited, or roused
produce suddenly or automatically
be contingent on