The term "mafia" refers to organized crime groups that engage in illegal activities, often using violence and intimidation to maintain control. These groups typically operate in secrecy and have a hierarchical structure, with leaders who make decisions and members who carry out tasks. The most famous mafia is the Italian Mafia, particularly the Sicilian Mafia, known for its influence in various criminal enterprises. Mafia organizations often engage in activities such as drug trafficking, extortion, and money laundering. They may also infiltrate legitimate businesses to launder money or exert control over local economies. The term has also been popularized in movies and literature, contributing to its cultural significance.