mafia
From Longman Dictionary of Contemporary Englishmafiamaf‧i‧a /ˈmæfiə $ ˈmɑː-, ˈmæ-/ noun 1 → the Mafia2 GROUP OF PEOPLE[singular] a powerful group of people within an organization or profession who support and protect each other the medical mafiaOrigin mafia (1800-1900) Italian Italian dialect, “great confidence, proud talk”