sex vs mammary gland

sex and mammary gland both are nouns.

Word	Noun	Adjective	Verb	Adverb
sex	Yes	No	Yes	No
mammary gland	Yes	No	No	No

sex (noun)	mammary gland (noun)
activities associated with sexual intercourse	milk-secreting organ of female mammals
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

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