Definition of Ruby

Noun

• a deep and vivid red color
  crimson - deep red
• a transparent deep red variety of corundum
  used as a gemstone and in lasers
  
• a transparent piece of ruby that has been cut and polished and is valued as a precious gem
  

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
  red reddish ruddy - blood red carmine cerise cherry - cherry red crimson - ruby red scarlet

• Scrabble® score of the ruby (9)
• Word Chums® score of the ruby (10)
• Words With Friends® score of the ruby (10)