Illicit businesses are those that operate outside the bounds of the law, often engaged in illegal activities such as drug trafficking, human smuggling, and money laundering. They are a scourge on society, harming individuals and communities alike. Synonyms for the word "illicit businesses" include shadow economy, black market, underground economy, informal sector, and gray economy. These terms all refer to economic activities that exist outside the purview of government regulation and oversight. While some may argue that these businesses serve a necessary function in certain contexts, they ultimately undermine the rule of law and the welfare of society as a whole.