We've got one: he. When it's important that you communicate that he is male, you have to make an extra statement. Otherwise he is just somebody and you don't

We've got one: he. When it's important that you communicate that he is male, you have to make an extra statement. Otherwise he is just somebody and you don't know what gender he is at all. Unless someone tells you he is male, that is. But if it doesn't matter whether he is male, female, or something else -- there's no reason to specify his gender. Basically, we don't really care who he is. That's why we use the generic word "he".