輝き

1. Origins, structure, and basic meaning

• Structure: 輝き is read かがやき and means visible shine or a radiance expressed in someone's eyes.
• Basic usage: It describes the physical shine of polished glass and the figurative sparkle of confidence returning to someone's eyes.

2. Common pitfalls and similar expressions

• Surface shine
  • 輝きを放った means that the polished glass surface gave off a shine.
• Radiance in the eyes
  • 自信の輝きが戻った means that a confident sparkle returned to the eyes.