銅

Phono-semantic compound:

金 (금, metal) – semantic component, indicating metal

同 (동, same, together) – phonetic component, giving the sound

銅鑼 (동라) — large gong (bronze percussion instrument)

銅像 (동상) — bronze statue

青銅 (청동) — bronze

銅貨 (동화) — copper coin

銅管樂器 (동관악기) — brass instruments (lit. “copper wind instruments”)

Widely used since ancient times for tools, coins, and ritual vessels.

Bronze (青銅) marked a major stage in cultural development (“Bronze Age”).