This is the 14935th most frequent German word.
rückwärtigen
"Rückwärtigen" means "rear" or "backward" in English.
In this sentence, 'rückwärtigen' is used as an adjective to describe 'Türen', meaning 'located at the back'.
Die rückwärtigen Türen des Gebäudes waren verschlossen.
The rear doors of the building were locked.
In this context, 'rückwärtigen' modifies 'Gang', referring to a 'gear enabling the vehicle to move backwards'.
Das Auto wurde in den rückwärtigen Gang geschaltet.
The car was put into reverse gear.
Here, 'rückwärtigen' describes 'Weg', indicating a 'path that is behind or retreating'.