下りる

1. Origins, structure, and basic meaning

• Structure: Written 下りる and read おりる, it is an intransitive verb for moving downward or getting out of a vehicle.
• Basic usage: It appears in preparing to leave a train and descending a long staircase toward a river.

2. Common pitfalls and similar expressions

• Contrast with causing something to descend
  • The subject moves or gets off by itself rather than lowering another object or person.