A short but very heavy rain shower. The word 'Regenguss' (downpour) is also often used.
example
Wir wurden auf dem Heimweg von einem plötzlichen Guss überrascht und waren komplett nass.
We were caught off guard by a sudden downpour on the way home and were completely wet.
Usage tips
Word family
The noun 'der Guss' (pouring/casting) is closely related to the verb 'gießen' (to pour; gießt, goss, hat gegossen). All meanings of 'Guss' have to do with the idea of something liquid being poured somewhere.
EXAMPLE
Sie goss den Teig vorsichtig in die Form.
She carefully poured the batter into the mold.
Context clue: weather
When 'Guss' (downpour) is used in connection with weather, rain, or the sky, it always means a short, heavy rain shower. You often hear the combination 'ein plötzlicher Guss' (a sudden downpour).
EXAMPLE
Mitten im Spaziergang kam ein heftiger Guss vom Himmel.
In the middle of the walk, a heavy downpour came from the sky.
Context clue: baking
In the context of baking, cakes, pastries, sugar, or chocolate, 'der Guss' (the glaze) refers to the liquid icing that is poured over baked goods.
EXAMPLE
Der Zitronenkuchen bekommt noch einen süßen Guss aus Puderzucker.
The lemon cake will still get a sweet glaze made of powdered sugar.
Context clue: technology
In technical or industrial contexts, often with words like metal, iron, bronze, or plastic, 'Guss' (casting) describes the pouring of liquid material into a mold.
EXAMPLE
Viele Motorteile werden im Aluminium-Druckguss-Verfahren hergestellt.
Many engine parts are produced using the aluminum die-casting process.
Fixed expression
The idiom 'aus einem Guss' (all of a piece) is used figuratively. It describes something that seems very harmonious, unified, and perfectly coordinated, for example a design, a plan, or an event.
EXAMPLE
Das neue Design des Smartphones wirkt wie aus einem Guss.
The new design of the smartphone seems all of a piece.
Compare with
near_synonym · confusable
Guss vs Schauer
shower / shiver
'Schauer' and 'Guss' can both refer to a short rain event. A 'Schauer' is generally a short, often sudden precipitation. It can be rain, snow, or hail, and it does not have to be extremely heavy. In weather contexts, a 'Guss' almost always means a very heavy short rain; people often also say 'Regenguss' (downpour). The words can be confused because both can start suddenly and be over quickly. If only the short duration is important, 'Schauer' fits better. If you want to emphasize the heavy amount of rain, 'Guss' is more precise.
Guss
Nach dem heftigen Guss standen die Straßen voller Wasser.
After the heavy downpour, the streets were full of water.
Schauer
Am Nachmittag kam ein kurzer Schauer, aber danach schien wieder die Sonne.
In the afternoon there was a short shower, but afterward the sun came out again.