While the term "coven" is often associated with witchcraft, it can also refer to any group of people who meet regularly for a particular purpose. For example, you could have a "coven" of knitters, a "coven" of gamers, or a "coven" of friends who meet for dinner every month.
However, the most common and well-known meaning of "coven" is in the context of witchcraft. It has a long and rich history in folklore and popular culture.