Luster is a word that is used to describe a shiny or reflective surface or the quality of being bright and attractive. There are several synonyms that can be used to describe luster, including shine, sheen, brilliance, gloss, sparkle, glitter, radiance, and glow. Each of these words emphasizes a different aspect of the quality of being bright and attractive. Shine and sheen both emphasize the reflective quality of the surface, while brilliance and radiance emphasize the brightness and intensity of the light. Gloss and sparkle both suggest a certain level of glamour or luxury, while glow emphasizes a warm and inviting quality. Whatever word you choose, they all refer to the same quality of light and shine that catches the eye and draws attention.