Noun | 1. | Gestapo - the secret state police in Nazi Germany; known for its terrorist methods act of terrorism, terrorism, terrorist act - the calculated use of violence (or the threat of violence) against civilians in order to attain goals that are political or religious or ideological in nature; this is done through intimidation or coercion or instilling fear secret police - a police force that operates in secrecy (usually against persons suspected of treason or sedition) Schutzstaffel, SS - special police force in Nazi Germany founded as a personal bodyguard for Adolf Hitler in 1925; the SS administered the concentration camps |