A special vehicle, usually used by the police at demonstrations or riots, to disperse or push back crowds with a powerful jet of water.
example
Die Polizei setzte Wasserwerfer ein, um die Blockade der Aktivisten aufzulösen.
The police deployed water cannons to break up the activists' blockade.
Usage tips
Word composition
The word is built very logically: it consists of 'Wasser' (water) and 'Werfer' (thrower, from 'werfen' (to throw)). A 'Wasserwerfer' (water cannon) is therefore literally a device that throws water.
EXAMPLE
Der Wasserwerfer stand am Rande der Demonstration bereit.
The water cannon stood ready at the edge of the demonstration.
Typical verb
The most common verb used with 'Wasserwerfer' (water cannon) is 'einsetzen' (to deploy/use). The police or security forces actively deploy the vehicles.
EXAMPLE
Die Regierung drohte damit, bei weiteren Ausschreitungen Wasserwerfer einzusetzen.
The government threatened to deploy water cannons if there were further riots.
Typical context
This word is used almost exclusively in the context of demonstrations, protests, or riots where the police are trying to control crowds.
EXAMPLE
In den Nachrichten wurden Bilder von Wasserwerfern gezeigt, die gegen die Demonstranten fuhren.
The news showed images of water cannons driving toward the demonstrators.