either the male or female division of a species, esp. as differentiated with reference to the reproductive functions.

the sum of the structural and functional differences by which the male and female are distinguished, or the phenomena or behavior dependent on these differences.

the instinct or attraction drawing one sex toward another, or its manifestation in life and conduct.

coitus.

genitalia.

to ascertain the sex of, esp. of newly-hatched chicks. ?

sex up, Informal .

to arouse sexually

The only intent of that show was to sex up the audience.

to increase the appeal of; to make more interesting, attractive, or exciting

We've decided to sex up the movie with some battle scenes.

to have sex

to engage in sexual intercourse.

noun

abstention , chastity

noun

femininity , manhood , manliness , masculinity , sexuality , womanhood , womanlinessnotes:gender is the properties that distinguish organisms on the basis of their reproductive roles; sex is either of the two categories , male or female , into which most organisms are divided , birds and the bees , coition , coitus , copulation , facts of life , fornication , generation , intimacy , lovemaking , magnetism , procreation , relations , reproduction , sensuality , sexualitynotes:gender is the properties that distinguish organisms on the basis of their reproductive roles; sex is either of the two categories , affinity , dioecism , female , gender , intercourse , love , male