銅貨

1. Origins, structure, and basic meaning

• Structure: 銅貨 (どうか) is a noun for a copper coin.
• Basic usage: It describes coins found at ruins or a coin used to buy bread in a story.
  • 遺跡から小さな銅貨が何枚か見つかりました。 — Several small copper coins were found at the ruins.
  • 物語の少年は一枚の銅貨でパンを買いました。 — The boy in the story bought bread with one copper coin.

2. Common pitfalls and similar expressions

• Material and counting
  • 銅貨 identifies a coin made of copper, and 枚 counts the flat coins in these examples.