maternity vs sex

maternity and sex both are nouns.

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

maternity (noun)	sex (noun)
the quality of having or showing the tenderness and warmth and affection of or befitting a mother	activities associated with sexual intercourse
the kinship relation between an offspring and the mother	the properties that distinguish organisms on the basis of their reproductive roles
the state of being pregnant; the period from conception to birth when a woman carries a developing fetus in her uterus	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

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