A deep red, translucent variety of the mineral corundum, highly valued as a precious stone, Something resembling a ruby; a blain; a blotch; a carbuncle, A clear, deep, red variety of corundum, valued as a precious stone, adjective_ of a color at the end of the color spectrum (next to orange); resembling the color of blood or cherries or tomatoes or rubies, Of a deep red colour (having any of numerous bright colours reminiscent of the colour of blood or cherries or tomatoes), Of the color ruby, transitive verb_ rare To make red; to redden, poetic To make red; to redden