Definition of Cosa Nostra in English:

Cosa Nostra

Pronunciation /ˌkōsə ˈnōstrə/ /ˌkoʊsə ˈnoʊstrə/ /ˌkōzə ˈnōstrə/ /ˌkoʊzə ˈnoʊstrə/

proper noun

  • A US criminal organization resembling and related to the Mafia.

Origin

Italian, literally ‘our affair’.