IPA: /mæˈfiːsoʊ/
KK: /mæˈfiːsoʊ/
A person who is a member of a secret criminal organization, often involved in illegal activities such as extortion, smuggling, or racketeering.
The police arrested several mafiosos during the investigation into organized crime.
Mafioso → The word originates from Italian 'mafia', which is believed to derive from Sicilian dialect, possibly from 'màffia', meaning 'acting as a protector against the arrogance of the powerful'. The suffix '-oso' in Italian means 'full of' or 'characterized by'. Thus, 'mafioso' refers to a person characterized by or associated with the mafia.
Think of someone who is 'full of' the qualities associated with the mafia, as 'mafioso' describes a person involved in that world.