sex activity vs fermentation

sex activity and fermentation both are nouns.

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

sex activity (noun)	fermentation (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