The document discusses horror subgenres and hybrid genres. It defines a subgenre as a category of works within a larger genre characterized by a particular style or content. Some common horror subgenres mentioned are comedy horror, slasher films, supernatural horror, and psychological horror. The document also defines a hybrid genre as a mix of two different genres, such as the combination of western and horror in "Deadlands", or the sci-fi/horror blend of "Alien". Horror comedy combines horrific elements with comedy. Slasher films involve a psychopathic killer stalking victims with a weapon. Supernatural horror depicts impossible events like demons. Psychological horror builds tension through character fears and emotions.