Learn how to say Ruby correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word ruby:
noun (plural rubies)
1a precious stone consisting of corundum in colour varieties varying from deep crimson or purple to pale rose:
a necklace of rubies
a ruby eternity ring
[mass noun] an intense purplish-red colour:
the rich ruby liquid
this wine has a youthful ruby-red colour
2 [mass noun] Printing an old type size equal to 5 1/ 2 points.
Middle English: from Old French rubi, from medieval Latin rubinus, from the base of Latin rubeus ‘red’