This is the 5623rd most frequent German word.
biker
A biker is a person who rides a motorcycle.
In this sentence, 'Biker' refers to an individual riding a motorcycle.
Der Biker fuhr schnell die kurvige Straße hinunter.
The biker rode quickly down the winding road.
Here, 'Bikern' is in plural form, referring collectively to individuals who ride motorcycles.
Die Gruppe von Bikern traf sich am Wochenende für eine Ausfahrt.
The group of bikers met over the weekend for a ride.
The word 'Biker' in this context refers to someone deeply engaged in motorcycling as a sport or hobby.