der Ausstieg
exit
Leaving a vehicle or building; also the door or place where one gets out.
Der Ausstieg befindet sich in Fahrtrichtung rechts.
The exit is on the right in the direction of travel.

exit / withdrawal
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exit
Leaving a vehicle or building; also the door or place where one gets out.
Der Ausstieg befindet sich in Fahrtrichtung rechts.
The exit is on the right in the direction of travel.

'Der Ausstieg' (exit/withdrawal) comes from the separable verb 'aussteigen' (to get out / to leave). The basic meaning is to leave a vehicle or a place. This idea of leaving is also used in the figurative meanings.
Wir müssen an der nächsten Haltestelle aussteigen.
We have to get out at the next stop.
In the figurative meanings, the preposition 'aus' (from/out of) with the dative is almost always used to name what one is leaving. People speak of 'Ausstieg aus der Atomenergie' (withdrawal from nuclear energy) or 'Ausstieg aus einer Szene' (leaving a scene).
Die Regierung plant den schrittweisen Ausstieg aus der Kohleenergie.
The government is planning the gradual withdrawal from coal energy.
In the context of buses and trains, 'der Ausstieg' (the exit) often specifically refers to the door through which one gets out. Announcements like 'Der Ausstieg ist in Fahrtrichtung links' (the exit is on the left in the direction of travel) are very typical.
Bitte blockieren Sie nicht den Ausstieg.
Please do not block the exit.
When it is about ending projects or technologies, 'Ausstieg' (withdrawal) is often combined with adjectives such as 'schrittweise' (gradual), 'sofortig' (immediate), or 'geplant' (planned).
Umweltschützer fordern den sofortigen Ausstieg aus fossilen Brennstoffen.
Environmentalists are calling for the immediate withdrawal from fossil fuels.
entrance / receipt
'der Eingang' and 'der Ausstieg' are opposites in terms of direction. You go through an 'Eingang' into a building, room, or site. With an 'Ausstieg', you leave something, especially a vehicle, and sometimes also a building. Learners may confuse the words because both can refer to a place where people move. Pay attention to the direction: 'Eingang' means going in, while 'Ausstieg' means going out or getting off.

Bitte bleiben Sie nicht direkt vor dem Ausstieg des Busses stehen.
Please do not stand directly in front of the bus exit.
Der Eingang der Sporthalle ist wegen der Baustelle nur über den Hof erreichbar.
Because of the construction work, the entrance to the sports hall can only be reached through the courtyard.