"mafias" in the noun sense

1. Mafia, Maffia, Cosa Nostra

a crime syndicate in the United States organized in families believed to have important relations to the Sicilian Mafia

2. Mafia, Maffia, Sicilian Mafia

a secret terrorist group in Sicily originally opposed tyranny but evolved into a criminal organization in the middle of the 19th century

3. mafia, maffia

any tightly knit group of trusted associates

Source: WordNet® (An amazing lexical database of English)

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