usage vs sex

usage and sex both are nouns.

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

usage (noun)	sex (noun)
the act of using	activities associated with sexual intercourse
accepted or habitual practice	the properties that distinguish organisms on the basis of their reproductive roles
the customary manner in which a language (or a form of a language) is spoken or written	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

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