Origin

Copper is a metal, so this character uses the metal radical 金 on the left to signal "this is about metal." The right component 同 acts as a sound hint, suggesting roughly how the character should be pronounced. Together, the character 銅 combines the meaning hint (metal) with a pronunciation guide to create a complete written representation of the word for copper.

AI-generated (claude-haiku-4-5), not yet reviewed. Formation type (automated guess): Phono-semantic (meaning + sound hint).