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English definition of “sex”

sex

noun uk   /seks/ us  

sex noun (MALE/FEMALE)

B1 [U] the state of being either male or female: What sex is your cat? Some tests enable you to find out the sex of your baby before it's born. It's illegal to discriminate against people on the basis of (their) sex. She accused her employer of sex discrimination (= of treating her unfairly because she was a woman). C1 [C] all males considered as a group, or all females considered as a group: She seems to regard all members of the male sex as inferior. Members of the opposite sex are not allowed in students' rooms overnight.

sex noun (ACTIVITY)

B1 [U] physical activity between people involving the sexual organs: Sex before/outside marriage is strongly disapproved of in some cultures. She was complaining about all the sex and violence on television. She'd been having sex with a colleague at work for years. Most young people now receive sex education at school. extramarital/premarital sex casual sex (= sex with someone you do not know) unprotected sex (= sex without using something to prevent disease or becoming pregnant)

sex

verb [T] uk   /seks/ specialized us  
to discover if an animal is male or female: How do you sex fish?
Phrasal verbs
(Definition of sex from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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