This is the 3033rd most frequent German word.
beifahrer
Passenger (in a vehicle), typically the front-seat passenger.
In this sentence, 'Beifahrer' refers to the person sitting in the front passenger seat of the vehicle.
Der Beifahrer öffnete das Fenster, während das Auto an der Ampel wartete.
The passenger opened the window while the car was waiting at the traffic light.
Here, 'Beifahrer' is used to denote the person accompanying the driver on a trip.
Ich übernahm die Rolle des Beifahrers, als wir ins Einkaufszentrum fuhren.
I took on the role of the passenger when we drove to the shopping mall.
In this example, 'Beifahrer' describes the individual seated next to the driver who was involved in the incident.