奥

1. Origins, structure, and basic meaning

• Structure: 奥 is read as おく and means the inner part or a place deep inside, far from an entrance or outer edge.
• Basic usage: Use 廊下の一番奥 for the far end of a hallway and 森の奥 for deep inside a forest.

2. Common pitfalls and similar expressions

• Difference between 奥 and 裏
  • The former lies deep inside from an entrance or exterior, whereas the latter is the reverse side of an object or the back of a building.