Definition of luster noun from the Oxford Advanced American Dictionary

     

    luster

     noun
    (lustre)noun
    NAmE//ˈlʌstər//
     
    [uncountable]
     
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  1. 1the shining quality of a surface synonym sheen Her hair had lost its luster. The shell had a beautiful pearly luster.
  2. 2the quality of being special in a way that is exciting The presence of the prince added luster to the occasion. compare lackluster