The Collaborative International Dictionary of English v.0.48:

Ruby \Ru"by\, n.; pl. Rubies. [F. rubis (cf. Pr. robi), LL.
   rubinus, robinus, fr. L. rubeus red, reddish, akin to ruber.
   See Rouge, red.]
   1. (Min.) A precious stone of a carmine red color, sometimes
      verging to violet, or intermediate between carmine and
      hyacinth red. It is a red crystallized variety of
      corundum.
      [1913 Webster]

   Note: Besides the true or Oriental ruby above defined, there
         are the balas ruby, or ruby spinel, a red variety of
         spinel, and the rock ruby, a red variety of garnet.
         [1913 Webster]

               Of rubies, sapphires, and pearles white.
                                                  --Chaucer.
         [1913 Webster]

   2. The color of a ruby; carmine red; a red tint.
      [1913 Webster]

            The natural ruby of your cheeks.      --Shak.
      [1913 Webster]

   3. That which has the color of the ruby, as red wine. Hence,
      a red blain or carbuncle.
      [1913 Webster]

   4. (Print.) See Agate, n., 2. [Eng.]
      [1913 Webster]

   5. (Zool.) Any species of South American humming birds of the
      genus Clytolaema. The males have a ruby-colored throat
      or breast.
      [1913 Webster]

   Ruby of arsenic, Ruby of sulphur (Chem.), a glassy
      substance of a red color and a variable composition, but
      always consisting chiefly of the disulphide of arsenic; --
      called also ruby sulphur.

   Ruby of zinc (Min.), zinc sulphide; the mineral zinc blende
      or sphalerite.

   Ruby silver (Min.), red silver. See under Red.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Ruby \Ru"by\, a.
   Ruby-colored; red; as, ruby lips.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Ruby \Ru"by\, v. t. [imp. & p. p. Rubied; p. pr. & vb. n.
   Rubying.]
   To make red; to redden. [R.] --Pope.
   [1913 Webster]

WordNet (r) 3.0 (2006):

ruby
    adj 1: of a color at the end of the color spectrum (next to
           orange); resembling the color of blood or cherries or
           tomatoes or rubies [syn: red, reddish, ruddy,
           blood-red, carmine, cerise, cherry, cherry-red,
           crimson, ruby, ruby-red, scarlet]
    n 1: a transparent piece of ruby that has been cut and polished
         and is valued as a precious gem
    2: a transparent deep red variety of corundum; used as a
       gemstone and in lasers
    3: a deep and vivid red color [syn: crimson, ruby, deep
       red]

Moby Thesaurus II by Grady Ward, 1.0:

107 Moby Thesaurus words for "ruby":
   Titian, Titian-red, adamant, agate, alexandrite, amethyst,
   aquamarine, beryl, bloodstone, bricky, brilliant, carbuncle,
   cardinal, carmine, carnation, carnelian, cerise, chalcedony,
   cherry, cherry-colored, cherry-red, chrysoberyl, chrysolite,
   citrine, coral, crimson, damask, demantoid, diamond, emerald,
   ferruginous, fiery, fire-red, flame-colored, flame-red, flaming,
   garnet, girasol, glowing, gules, harlequin opal, heliotrope, hot,
   hyacinth, incarmined, incarnadine, inflamed, infrared, iron-red,
   jade, jadestone, jargoon, jasper, lake-colored, laky, lapis lazuli,
   lateritious, lobster-red, lurid, maroon, moonstone, morganite,
   onyx, opal, peridot, plasma, port-wine, puce, red, red-dyed,
   red-looking, reddened, reddish, reddish-amber, reddish-brown,
   rose quartz, rubicund, rubify, rubiginous, rubric, rubricose,
   ruby-colored, ruby-red, ruddied, ruddle, ruddy, rufescent, rufous,
   rust, rust-red, rusty, sapphire, sard, sardonyx, scarlet, spinel,
   spinel ruby, stammel, tile-red, topaz, turquoise, vermilion,
   vinaceous, warm, wine, wine-colored, wine-red



The Free On-line Dictionary of Computing (30 December 2018):

Ruby

   

   1. A relational language designed by Jones and M. Sheeran in
   1986 for describing and designing circuits (a hardware
   description language).  Ruby programs denote binary
   relations and programs are built-up inductively from
   primitive relations using a pre-defined set of relational
   operators.  Ruby programs also have a geometric
   interpretation as networks of primitive relations connected by
   wires, which is important when layout is considered in circuit
   design.

   Ruby has been continually developed since 1986, and has been
   used to design many different kinds of circuits, including
   systolic arrays, butterfly networks and arithmetic
   circuits.

   (ftp://ftp.cs.chalmers.se/pub/misc/ruby/).

   E-mail: .

   ["Ruby - A Language of Relations and Higher-Order Functions",
   M. Sheeran, Proc 3rd Banff Workshop on Hardware Verification,
   Springer 1990].

   (1994-10-27)

   2. One of five pedagogical languages based on Markov
   algorithms, used in Higman's report (below).  The other
   languages are Brilliant, Diamond, Nonpareil, and
   Pearl.

   ["Nonpareil, a Machine Level Machine Independent Language for
   the Study of Semantics", B. Higman, ULICS Intl Report No ICSI
   170, U London (1968)].

   (1994-10-27)

   3. A fully object oriented interpreted scripting
   language by Yukihiro Matsumoto .

   Similar in scope to Perl and Python, Ruby has high-level
   data types, automatic memory management, dynamic typing,
   a module system, exceptions, and a rich standard library.
   Other features are CLU-style iterators for loop
   abstraction, singleton classes/methods and lexical
   closures.

   In Ruby, everything is an object, including the basic data
   types.  For example, the number 1 is an instance of class
   Fixnum.

   Current version (stable): 1.6.7, as of 2002-03-01.

   Ruby Home (http://ruby-lang.org/).

   Ruby Central (http://rubycentral.com/).

   ["Programming Ruby - The Pragmatic Programmer's Guide", David
   Thomas, Andrew Hunt, Yukihiro Matsumoto pub. Addison Wesley
   2000].

   (2002-06-19)


Easton's 1897 Bible Dictionary:

Ruby
   (Heb. peninim), only in plural (Lam. 4:7). The ruby was one of
   the stones in the high priest's breastplate (Ex. 28:17). A
   comparison is made between the value of wisdom and rubies (Job
   28:18; Prov. 3:15; 8:11). The price of a virtuous woman is said
   to be "far above rubies" (Prov. 31:10). The exact meaning of the
   Hebrew word is uncertain. Some render it "red coral;" others,
   "pearl" or "mother-of-pearl."


U.S. Gazetteer Places (2000):

Ruby, AK -- U.S. city in Alaska
   Population (2000):    188
   Housing Units (2000): 107
   Land area (2000):     7.550772 sq. miles (19.556408 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    7.550772 sq. miles (19.556408 sq. km)
   FIPS code:            65590
   Located within:       Alaska (AK), FIPS 02
   Location:             64.737306 N, 155.487693 W
   ZIP Codes (1990):     99768
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Ruby, AK
    Ruby


U.S. Gazetteer Places (2000):

Ruby, SC -- U.S. town in South Carolina
   Population (2000):    348
   Housing Units (2000): 182
   Land area (2000):     3.107268 sq. miles (8.047788 sq. km)
   Water area (2000):    0.021608 sq. miles (0.055964 sq. km)
   Total area (2000):    3.128876 sq. miles (8.103752 sq. km)
   FIPS code:            62080
   Located within:       South Carolina (SC), FIPS 45
   Location:             34.745626 N, 80.175903 W
   ZIP Codes (1990):     29741
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Ruby, SC
    Ruby