Learn how to say Sex correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word sex:
1 [mass noun] (chiefly with reference to people) sexual activity, including specifically sexual intercourse:
he enjoyed talking about sex
she didn’t want to have sex with him
[in singular] euphemistic a person’s genitals.
2either of the two main categories (male and female) into which humans and most other living things are divided on the basis of their reproductive functions:
adults of both sexes
[mass noun] the fact of belonging to either the male or female sex:
direct discrimination involves treating someone less favourably on the grounds of their sex
the group of all members of either the male or female sex:
she was well known for her efforts to improve the social condition of her sex
1determine the sex of:
each bird would need to be individually sexed
2 (sex something up) informal present something in a more interesting or lively way.
3 (sex someone up) informal arouse or attempt to arouse someone sexually.
late Middle English (denoting the two categories, male and female): from Old French sexe or Latin sexus