Definitions for mafiosoˌmɑ fiˈoʊ soʊ
Random House Webster's College Dictionary
ma•fi•o•soˌmɑ fiˈoʊ soʊ(n.)(pl.)-si; -sos.
(often cap.) a member of the Mafia.
Category: Western History
Origin of mafioso:
1870–75; < It =Mafi(a)Mafia+-oso < L -ōsus -ose1
a member of the Sicilian Mafia
a member of the Mafia crime syndicate in the United States
A member of the Mafia.