Other forms: subcultures
A subculture is a group of people within a larger culture, such as a country, who have something in common. They might share religious or political beliefs or be science fiction fans, for example.
A culture is how people live, sometimes based on where they live — you can refer to American culture, Canadian culture, or to an Australian culture. Within these larger cultures, there are also subcultures of many sizes. The Native American community is a subculture, as is the Mormon community. Also, subcultures can be based on interests, like "Deadheads" who used to follow around the rock band "The Grateful Dead." Before 1936, the word subculture was only used by scientists to talk about bacterial cultures.