ruby

Meanings

1. 1
   noun

   a deep red precious stone, a variety of corundum

   The ring held a small ruby between two diamonds.

2. 2
   noun

   a deep vivid red color

   The sunset faded from orange into ruby.

3. 3
   noun

   the Ruby programming language, used especially for web applications

   The backend was written in Ruby with Rails.

4. 4
   adj

   deep red in color

   She wore ruby earrings that matched her scarf.

From Middle English ruby, from Old French rubi, from Medieval Latin rubinus, connected with Latin rubeus (red).

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