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1.
of a color at the end of the color spectrum (next to orange); resembling the color of blood or cherries or tomatoes or rubies
'ruby' - used as a noun
2.
a transparent piece of ruby that has been cut and polished and is valued as a precious gem
3.
a transparent deep red variety of corundum; used as a gemstone and in lasers
4.
a deep and vivid red color
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