Origin

The character combines fire (火) on the left, which establishes the meaning of something that burns or produces heat, with a sound hint (戸) on the right that suggests the pronunciation. The fire component makes sense because a hearth, furnace, or kiln is fundamentally a place where fire burns. By pairing fire with a phonetic guide, the character efficiently captures both what the object is and how it should be read aloud in Chinese, a system later inherited by Japanese.

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