Cosa Nostra Definition & Meaning - Merriam-Webster

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Cosa Nostra

Italian noun phrase

Co·​sa Nos·​tra ˈkō-sä-ˈnō-strä : our thing : the Sicilian Mafia

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cosalite Cosa Nostra cosaque See all Nearby Words

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“Cosa Nostra.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Cosa%20Nostra. Accessed 29 Dec. 2025.

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