ruby

nouns

a transparent piece of ruby that has been cut and polished and is valued as a precious gem
ruby
is a type of (narrower)
a precious or semiprecious stone incorporated into a piece of jewelry
gem, jewel, precious stone
a transparent deep red variety of corundum; used as a gemstone and in lasers
ruby
is a type of (narrower)
very hard mineral used as an abrasive
corundom, corundum
is a type of (narrower)
a gemstone having the property of transmitting light without serious diffusion
transparent gem
a deep and vivid red color
crimson, deep red, ruby
is derived from
rubify

adjectives

of a color at the end of the color spectrum (next to orange); resembling the color of blood or cherries or tomatoes or rubies
blood-red, carmine, cerise, cherry, cherry-red, crimson, red, reddish, ruby, ruby-red, ruddy, scarlet