An "underboss" is a high-ranking member of a criminal organization, typically serving directly under the boss. This position is crucial in the hierarchy, as the underboss often oversees the day-to-day operations of the organization and manages its various activities. The underboss acts as a key advisor to the boss and may step in to lead if the boss is unavailable. In many cases, the underboss is responsible for maintaining order within the organization and ensuring that its members follow the rules. This role is often associated with organized crime families, such as those depicted in popular culture, including The Godfather series, where the dynamics of power and loyalty are explored.