The kanji 燿 primarily conveys the meanings of "shine," "glitter," "radiance," or "brilliance." It implies a strong and intense light, often associated with a bright or dazzling display. It can also refer to something that is glorious or splendid.

・On-yomi (音読み): よう (yō) ・Kun-yomi (訓読み): かがや（く） (kagaya(ku)) - to shine, to glitter

⚫︎ 光[燿]（こうよう） Translation: brilliance, radiance ⚫︎ [燿]光（ようこう） Translation: radiant light ⚫︎ [燿]々（ようよう） Translation: sparkling, glittering

The kanji 燿 is a phono-semantic compound. It combines the radical "火" (火) meaning "fire" or "light", with the phonetic component "翟" (meaning the sound of a bird or the name of a bird). The combination suggests the idea of bright and dazzling light, emphasizing the brilliance of fire or light. The evolution of the character likely involved simplifying the representation of light and its association with the phonetic element.