銅

1. Origins, structure, and basic meaning

• Structure: 銅, read どう, means the metal copper.
• Basic usage: It is used to describe the material of a pot or an old coin.
  • この鍋は銅で作られている。

2. Common pitfalls and similar expressions

• The material compared with 青銅
  • 銅 means copper itself, while 青銅 means bronze, an alloy whose main component is copper.