"ruby" in the noun sense
1. ruby
a transparent piece of ruby that has been cut and polished and is valued as a precious gem
2. ruby
a transparent deep red variety of corundum used as a gemstone and in lasers
3. crimson, ruby, deep red
a deep and vivid red color
"ruby" in the adjective sense
1. red, reddish, ruddy, blood-red, carmine, cerise, cherry, cherry-red, crimson, ruby, ruby-red, scarlet
of a color at the end of the color spectrum (next to orange resembling the color of blood or cherries or tomatoes or rubies
Source: WordNet® (An amazing lexical database of English)
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