smoke signal

US /ˈsmoʊk ˌsɪɡ.nəl/
UK /ˈsmoʊk ˌsɪɡ.nəl/
"smoke signal" picture
1.

Rauchsignal

a column of smoke used as a signal, especially one made by a fire on a mountain or hill to send a message

:
The stranded hikers sent up a smoke signal to alert rescuers.
Die gestrandeten Wanderer schickten ein Rauchsignal, um Retter zu alarmieren.
In ancient times, smoke signals were a common way to communicate over long distances.
In alten Zeiten waren Rauchsignale eine gängige Methode, um über weite Entfernungen zu kommunizieren.