ruby

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English[edit]

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A ruby (gem).

Pronunciation[edit]

Etymology 1[edit]

Borrowed from Old French rubi, from Latin rubeus (red).

Noun[edit]

ruby (countable and uncountable, plural rubies)

  1. A clear, deep, red variety of corundum, valued as a precious stone.
    • 2012 March 1, Lee A. Groat, “Gemstones”, in American Scientist[1], volume 100, number 2, page 128:
      Although there are dozens of different types of gems, among the best known and most important are diamond, ruby and sapphire, emerald and other gem forms of the mineral beryl, chrysoberyl, tanzanite, tsavorite, topaz and jade.
  2. (obsolete) A red spinel.
  3. A deep red colour.
    ruby colour:  
    • Shakespeare
      the natural ruby of your cheeks
  4. (uncountable, printing, Britain, dated) The size of type between pearl and nonpareil, standardized as 5½-point.
    Synonyms: agate (US)
  5. A ruby hummer, a South American hummingbird, Clytolaema rubricauda.
  6. A red bird-of-paradise, Paradisaea rubra.
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Adjective[edit]

ruby (comparative more ruby, superlative most ruby)

  1. Of a deep red colour.
Translations[edit]

Verb[edit]

ruby (third-person singular simple present rubies, present participle rubying, simple past and past participle rubied)

  1. (transitive, poetic) To make red; to redden.
    (Can we find and add a quotation of Alexander Pope to this entry?)

Further reading[edit]

  • Ruby” in David Barthelmy, Webmineral Mineralogy Database[2], 1997–.
  • ruby mindat.org[3], Hudson Institute of Mineralogy, accessed 29 August 2016

Etymology 2[edit]

From the British 5.5-point font Ruby, used for annotations in printed documents.

Noun[edit]

ruby (plural rubies)

  1. A pronunciation guide written above or beside Chinese or Japanese characters.
    Synonyms: rubi
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Silesian[edit]

Alternative forms[edit]

Etymology[edit]

From Proto-Slavic *grubъ.

Adjective[edit]

ruby

  1. fat, thick