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1. Of a colour at the end of the colour spectrum (next to orange); resembling the colour of blood, cherries, tomatoes or rubies
   "The picture would come through dark with a ruby tinge";
   - red, reddish, ruddy, blood-red, carmine, cerise, cherry, cherry-red, crimson, ruby-red, scarlet, rufescent, reddy

1. A transparent piece of ruby that has been cut and polished and is valued as a precious gem
    
2. A transparent deep red variety of corundum; used as a gemstone and in lasers
    
3. A deep and vivid red colour
   - crimson, deep red
    
4. (historical) a size of printing type

Derived forms: rubies

See also: chromatic

Type of: corundom, corundum, gem, jewel, precious stone, red, redness, transparent gem

Encyclopedia: Ruby, New South Wales