shinerPronunciation: /ˈʃʌɪnə/Definition of shiner noun 1a thing that shines or reflects light: moonlight blanked the weakest shiners, but the powerful stars were gleaming [in combination] a person or thing that polishes something:shoeshiners 2 informal a black eye: his shiner was throbbing 3a small silvery North American freshwater fish which typically has colourful markings. Notropis and other genera, family Cyprinidae: several species shiner in other Oxford dictionaries Definition of shiner in the US English dictionary