霧

1. Origins, structure, and basic meaning

• Structure: 霧 is read きり and means fog, in which tiny airborne water droplets obscure the view into the distance.
• Basic usage: It is used for an opposite riverbank being hard to see in the morning or fog thickening on a mountain road.

2. Common pitfalls and similar expressions

• Thickening and clearing
  • 霧が濃くなる means the fog becomes thicker, while 霧が晴れる means it clears.