period vs sex

period and sex both are nouns.

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

period (noun)	sex (noun)
a punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations	activities associated with sexual intercourse
the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause	the properties that distinguish organisms on the basis of their reproductive roles
an amount of time	all of the feelings resulting from the urge to gratify sexual impulses
the interval taken to complete one cycle of a regularly repeating phenomenon	either of the two categories (male or female) into which most organisms are divided
a unit of geological time during which a system of rocks formed
the end or completion of something
(ice hockey) one of three divisions into which play is divided in hockey games

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