luster

1. The ability or condition of shining with reflected light; sheen, gleam, gloss, sparkle, shine, etc.Examples: "By the luster or glance of a mineral is meant the quantity and quality of light reflected by it, as determined by the character or minute structure of its surface. […] The two principal kinds of luster are the metallic and non-metallic. […] The adamantine luster is intermediate between the metallic and non-metallic lusters. […] The vitreous is the luster of glass, and of all minerals similar to glass in appearance, such as quartz, calcite, etc. The resinous luster is seen in resins, of which the native mineral copalite is an example; it is also well exhibited in sulphur and sphalerite. The pearly luster, i.e., the luster of pearl, is well shown only in minerals having a foliated or scaly structure, in other words, very perfect cleavage in one direction, such as talc, mica, and gypsum. The silky or satiny luster, like the pearly, is determined by the structure, being observed only in finely fibrous minerals. […] The greasy and waxy lusters are most common in certain amorphous minerals, such as serpentine."UScountableuncountable

2. (figurative) Shining light from within, luminosity, brightness, shine.Examples: "the sun’s luster"; "the luster of the minor stars"; "[…] abashed the devil stood, And felt how awful goodness is, and saw Virtue in her shape how lovely, saw, and pined His loss; but chiefly to find here observed His lustre visibly impaired; yet seemed Undaunted. […]"UScountablefigurativelyuncountable

3. (figurative) Shining beauty, splendor, attractiveness or attraction.Examples: "How does the Luſtre of our Father’s Actions, Through the dark Cloud of Ills that cover him, Break out, and burn with more triumphant Brightneſs!"; "After so many years in the same field, the job had lost its luster."; "When Autumn's yellow lustre gilds the world..."UScountablefigurativelyuncountable

4. (figurative) Shining fame, renown, glory.Examples: "After the scandal, the idol lost his luster and could only get work in Vegas."; "[…] whose ancestors, says Clarendon, had been transported out of Normandy with the Conqueror, "and had continued," says Sir Henry Wotton, "about the space of four hundred years, rather without obscurity than with any great lustre […]"."; "But Main, High, and Central have no past; rather, their past is now. It is not the fault of the inhabitants that nothing has gone before them. Nor are they to be condemned if they make their spinal streets conspicuous, and confer egregious lustre and false acclaim on Central, High, or Main, and erect minarets and marquees indeed as though their city were already in dream and fable."UScountablefigurativelyuncountable

5. (figurative) Polish, social refinement.Examples: "Sure, the posh git spoke with fine lustre. ’S all a load of bollocks, though, innit?"UScountablefigurativelyuncountable

6. A thing exhibiting luster, particularlyUScountableliteraryuncountable