1. the world, realm, or domain of gangsters and organized crime
Usage: informal; often used to refer to the culture, activities, or social structure associated with criminal gangs

Examples

• He spent years studying the history of gangsterdom in Chicago during Prohibition.
• The novel explores the rise and fall of a young man drawn into gangsterdom.
• Movies often romanticize gangsterdom, but the reality is far more brutal.
• Law enforcement agencies have made significant progress in dismantling gangsterdom in the city.
• The documentary reveals the inner workings of gangsterdom in the 1980s.