German NotrufA 911 call, emergency call, distress call.

The closest single-word translation in English could be “SOS” but it doesn’t work for all contexts that “Notruf” would be used. Example sentences: “Wir haben einen Notruf von Der Schule.” -We have an emergency call from the school. “Captain, wir empfangen Notrufe von allen Schiffen.” -Captain we are receiving distress calls from all ships