Detrain
/ˌdiːˈtreɪn/
Definition 1 of 1
Pro Tip 1/3Railway Context
Used when describing actions involving train travel. 
We needed to detrain quickly because we reached our final stop.
Pro Tip 2/3Emergency Situations
Often used in the context of emergencies or interruptions during a train journey. 
The conductor instructed all passengers to detrain due to a fire ahead.
Pro Tip 3/3Unexpected Events
Can imply an unforeseen or unplanned action, unlike routine stops. 
Passengers were surprised when they had to detrain in the middle of the countryside.