sex activity vs ferment

sex activity and ferment both are nouns.

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

sex activity (noun)	ferment (noun)
activities associated with sexual intercourse	a process in which an agent causes an organic substance to break down into simpler substances; especially, the anaerobic breakdown of sugar into alcohol
	a state of agitation or turbulent change or development
	a substance capable of bringing about fermentation

sex activity (verb)	ferment (verb)
	go sour or spoil
	cause to undergo fermentation
	work up into agitation or excitement
	be in an agitated or excited state