軒先

1. Origins, structure, and basic meaning

• Structure: 軒先 (reading のきさき) is a noun for the edge of the eaves or the narrow space immediately beneath them.
• Basic usage: It applies both to raindrops falling from the eaves and to items placed under a farmhouse eave.

2. Common pitfalls and similar expressions

• Edge and sheltered space
  • Context determines whether it points to the projecting roof edge itself or to the small area below it.
• Contrast with 屋根
  • 屋根 is the roof as a whole; 軒先 singles out its projecting outer edge and adjacent space.