noun
speed, velocity
B1
Geschwindigkeit (die) means 'speed' or 'velocity' (rate of motion). Noun with article die; plural Geschwindigkeiten. Genitive singular der Geschwindigkeit. Often used with 'mit' (mit hoher Geschwindigkeit) or 'Geschwindigkeit von'. No fixed preposition. Technical and everyday use for motion or process speed.
Examples
Die Messung ergab, dass die Geschwindigkeit des Fahrzeugs über der erlaubten Grenze lag, sodass die Polizei eingriff.
The measurement showed that the vehicle's speed was above the permitted limit, so the police intervened.
Die Geschwindigkeit des Autos war zu hoch.
The car's speed was too high.
Die Geschwindigkeit ist hoch.
The speed is high.
Details
Mnemonics
Imagine a speedometer needle jumping to the right — that image links to the concept of speed.
Think 'guess-wind-igkeit' — 'guess wind' to remember it has to do with how fast the wind or something moves.
die — picture a female driver checking 'her' speed on the dashboard to remember the feminine article.
Notes
Often used interchangeably with Tempo in everyday speech, but Geschwindigkeit is more general and used in technical contexts (e.g., physics).