靴底

1. Origins, structure, and basic meaning

• Structure: The written form is 靴底, read くつぞこ. Elements for shoe and bottom combine to denote the sole that contacts the ground.
• Basic usage: 靴底がすり減る describes soles wearing down after a long walk, while 靴底に付いた泥 describes removing mud from them at an entrance.

2. Common pitfalls and similar expressions

• Soles worn after a long walk
  • A long walk causes the soles of the shoes to wear down. Example: 長く歩いたので靴底がすり減っていた。 — The soles of my shoes were worn after the long walk.
• Mud removed at the entrance
  • Mud is removed from the soles before entering. Example: 靴底についた泥を入口で落とした。 — I removed mud from the soles at the entrance.