[roo-bee] 
noun, plural -bies, adjective | 1. | a red variety of corundum, used as a gem. |
| 2. | something made of this stone or one of its imitations, as a bearing in a watch. |
| 3. | a deep-red port wine. |
| 4. | deep red; carmine. |
| 5. | British Printing. a 5 1/2 -point type, nearly corresponding in size to American agate. |
| 6. | ruby-colored: ruby lips. |
| 7. | containing or set or adorned with a ruby or rubies: a ruby necklace. |
ruby (r 'bē) Pronunciation Key
A deep-red, translucent variety of the mineral corundum, containing small amounts of chromium and valued as a gem. Compare sapphire. |