a British law passed in 1975 to prevent sex DISCRIMINATION (= unfair treatment of someone because of their sex), especially in employment and education
the practice of giving a particular number of jobs, places at university etc to people who are often treated unfairly because of their race, sex etc [= affirmative action American English]
the practice of giving unfair treatment to a group of people who usually have advantages, in order to be fair to the group of people who were unfairly treated in the past [↪ positive discrimination]