0 the state of being either male or female: --
Members of the opposite sex are not allowed in students' rooms overnight.
She seems to regard all members of the male sex as inferior.
She accused her employer of sex discrimination (= of treating her unfairly because she was a woman).
It's illegal to discriminate against people on the basis of (their) sex.
Some tests enable you to find out the sex of your baby before it's born.
1 physical activity between people involving the sexual organs: --
unprotected sex (= sex without using something to prevent disease or becoming pregnant)
She was complaining about all the sex and violence on television.
Sex before/outside marriage is strongly disapproved of in some cultures.
2 to discover if an animal is male or female: --
How do you sex fish?
3 the state of being either male or female, or all males or all females considered as a group : --
4 the activity of sexual intercourse --
The magazine, which gives frank advice about sex and romance, is aimed at the teenage market.
She's always dragging sex into the conversation.
The sex scenes had been cut out of the English version of the film.
She crusaded against sex and violence on television.
What sex is this dog?