窓

1. Origins, structure, and basic meaning

• Structure: 窓(まど) means a window that admits light or air and lets people see outside.
• Basic usage: It appears when airing a room or looking at the scenery from a train.

2. Common pitfalls and similar expressions

• Roles marked by particles
  • In 窓を開ける, the window is the object being opened.
  • In 窓から見る, it is the opening through which, or the point from which, someone looks outside.