frowsy vs sex

frowsy is not a noun while sex is a noun.

Word	Noun	Adjective	Verb	Adverb
frowsy	No	Yes	No	No
sex	Yes	No	Yes	No

frowsy (noun)	sex (noun)
	activities associated with sexual intercourse
	the properties that distinguish organisms on the basis of their reproductive roles
	all of the feelings resulting from the urge to gratify sexual impulses
	either of the two categories (male or female) into which most organisms are divided

frowsy (adjective)	sex (adjective)
negligent of neatness especially in dress and person; habitually dirty and unkempt

frowsy (verb)	sex (verb)
	tell the sex (of young chickens)
	to evoke sexual feelings