Generic antecedent
Generic antecedents are representatives of classes, referred to in ordinary language by another word (most often a pronoun), in a situation in which gender is typically unknown or irrelevant. These mostly arise in generalizations and are particularly common in abstract, theoretical or strategic discourse. Examples (with the antecedent in boldface and the referring pronoun in italics) include "readers of Wikipedia appreciate their encyclopedia" and "the customer who spends in this market".
The question of appropriate style for using pronouns to refer to such generic antecedents in the English language became politicized in the 1970s, and remains a matter of substantial dispute.
Treatment in various languages
Many languages share the following issue with English: the generic antecedent is a representative individual of a class, whose gender is unknown or irrelevant, but pronouns are gender-specific. In languages such as English that distinguish natural gender in pronouns but not grammatical gender in nouns, normally masculine, but sometimes feminine, forms of pronouns are used for the generic reference, in what is called the generic usage of the pronoun. The context makes the generic intent of the usage clear in communication.