ruby

Short definition from Wiktionary

Noun

1. 1
   A clear, deep, red variety of corundum, valued as a precious stone.
2. 2
   A deep red colour.
3. 3
   The tincture red or gules.
4. 4
   A ruby hummer, a South American hummingbird, Clytolaema rubricauda.
5. 5
   A red bird-of-paradise, Paradisaea rubra.
6. 6
   The size of type between pearl and nonpareil, standardized as 5½-point.
7. 7
   A red spinel.
8. 8
   A pronunciation guide written above or beside Chinese characters.
9. 9
   Alternative letter-case form of Ruby (“curry”).
10. 10
    A curry; ellipsis of Ruby Murray.

Adjective

1. 1
   Of a deep, red color; ruby-red.

Verb

1. 1
   To make red; to redden.

Proper noun

1. 1
   A female given name.
2. 2
   A surname.
3. 3
   A male given name.
4. 4
   A dynamic, reflective, general-purpose object-oriented programming language developed in the 1990s.
5. 5
   A city in Alaska.
6. 6
   A ghost town in Arizona.
7. 7
   A town in South Carolina.
8. 8
   A town in Wisconsin.
9. 9
   A settlement on the island of Saint Croix in the United States Virgin Islands.