SûretéPronunciation: /ˈsjʊəteɪ, syʀte/ (also Sûreté nationale /ˌnasjəˈnɑːl, nasjɔnal/)Definition of Sûreté the French police department of criminal investigation. Origin:French, literally '(National) Security'Sûreté in other Oxford dictionaries Definition of Sûreté in the US English dictionary