sss Meaning, Definition & Usage

1. noun an independent federal agency that administers compulsory military service
   Selective Service; Selective Service System.
   
2. noun the United States intelligence agency that protects current and former presidents and vice presidents and their immediate families and protects distinguished foreign visitors; detects and apprehends counterfeiters; suppresses forgery of government securities and documents
   SS; USSS; United States Secret Service; US Secret Service; Secret Service.
   
3. noun special police force in Nazi Germany founded as a personal bodyguard for Adolf Hitler in 1925; the SS administered the concentration camps
   SS; Schutzstaffel.
   

WordNet