This kanji 瑚 generally refers to coral, a marine invertebrate. It specifically represents the hard, stony skeletons of coral polyps, often used in jewelry or as a decorative item. The character embodies the idea of a beautiful, hard, and precious substance found in the ocean.

・On-yomi (音読み): コ (ko) ・Kun-yomi (訓読み): None, as the meaning is directly represented by the character.

⚫︎珊瑚 (さんご) Translation: Coral ⚫︎珊瑚礁 (さんごしょう) Translation: Coral reef ⚫︎珊瑚玉 (さんごぎょく) Translation: Coral bead/jewel

The kanji 瑚 is a phono-semantic compound (形声文字, けいせいもじ). The semantic component (meaning part) is 王, meaning "jade" or "precious stone," which subtly alludes to the value and beauty of coral. The phonetic component (sound part) is 胡 (こ, ko), which contributes the sound to the character. Together, these elements suggest a precious, stone-like material that is related to the sound of "ko". This kanji, therefore, combines a visual reference to a beautiful material with a phonetic clue.