Thesaurus

(n) : The Mob: any particular mafia, mentioned uniquely within the discussion's established or implicit context, usually and especially the Sicilian-Italian–Italian-American one (especially in American English) but occasionally others (e.g., the Russian one, the Japanese one).

(n) : The international criminal organization of Sicilian origin operating in Italy and the United States.

(n) : Any other specific organized crime syndicate operating internationally in high-level organized crime; often with a modifying adjective, such as a nationality.

(n) : (games) A social deduction party game modelling a conflict between an informed minority (the mafia) and an uninformed majority (the innocents). Each player is secretly assigned a role within one of these teams, and the innocents attempt to identify the mafia members before they are all "murdered".

(n) : A hierarchically structured secret organisation engaged in illegal activities like distribution of narcotics, gambling and extortion.

(n) : A crime syndicate.