ru·​by | \ ˈrü-bē How to pronounce ruby (audio) \
plural rubies

Definition of ruby

 (Entry 1 of 2)

1a : a precious stone that is a red corundum
b : something (such as a watch bearing) made of ruby
2a : the dark red color of the ruby
b : something resembling a ruby in color



Definition of ruby (Entry 2 of 2)

: of the color ruby

Examples of ruby in a Sentence

Recent Examples on the Web: Noun Dee holds the magical ruby that was one of Morpheus' prized possessions before his imprisonment. Christian Holub,, 6 June 2022 In this graphic and bold bedroom designed by Anthony Baratta, the modern Malm bed from IKEA gets a surge of color from a deep ruby red Hudson's Bay blanket. Hadley Mendelsohn, House Beautiful, 9 May 2022 Her offering includes everything from silver talismans engraved with the elaborate designs of Berber, Tuareg and Turkmen peoples to a ruby and table-cut diamond ring set in typically Indian high-karat gold. Kareem Rashed, Robb Report, 22 Apr. 2022 The formula includes hyaluronic acid to to provide moisture and ruby powder to provide a glow. ELLE, 20 May 2022 This lusciously impressive wine boasts a pure ruby color and a pure expression of Sonoma County. Jeanette Hurt, Forbes, 7 May 2022 The first Faberge egg contained a diamond miniature of the crown and a tiny ruby egg. CNN, 24 Mar. 2022 Richie's hair was sleek and pin-straight with a side part while Meg went all for a ruby red wig with bangs. Gabi Thorne, Allure, 22 Feb. 2022 The situation could be heightened during a GOP primary inside ruby red Alabama where all statewide office holders are Republican, and the Alabama Legislature is ruled by a supermajority of Republicans. al, 6 Feb. 2022 Recent Examples on the Web: Adjective The Legion hall was situated in this tiny town of 200, located in the ruby-red part of southwestern Illinois about 50 miles from St. Louis. Jeremy Gorner, Chicago Tribune, 17 June 2022 Chances are, the raw fish dish at Art and Soul — ruby-colored tuna strewn with fried shallots, the plate garnished with precise dots of avocado puree — is among the most alluring. Tom Sietsema, Washington Post, 3 June 2022 Take a walk on the Italian side with this ruby-red rosé made from Puglia's Negroamaro grapes. Lizz Schumer, Good Housekeeping, 29 Apr. 2022 But is this truly a good use of finite resources, to ensure that Wyoming’s ruby-red House seat remains in the hands of someone who only voted with Trump 93 percent of the time, instead of one who will exceed that loyalty by a few percentage points? Jason Linkins, The New Republic, 19 Mar. 2022 Dudley, who conducts research in the Animal Flight Laboratory at Berkeley, said that the in-flight heart rate of ruby-throated hummingbirds is about 20 beats/second., 17 June 2021 Gwyneth Paltrow’s ruby-red autumn/winter 1996 velvet suit included. Alice Cary, Vogue, 13 Jan. 2022 The entrance, guarded by two Nutcracker soldiers, is formed from moss and greenery, and overhead is a massive bow composed of ruby-red roses and carnations. Lilah Ramzi, Vogue, 10 Dec. 2021 There’s also a ruby-red goldfish borrowed from Matisse and several references to Mollie Katzen, the cookbook author and artist. New York Times, 28 Oct. 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ruby.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of ruby


14th century, in the meaning defined at sense 1a


15th century, in the meaning defined above

History and Etymology for ruby


Middle English, from Anglo-French rubi, rubin, from Medieval Latin rubinus, from Latin rubeus reddish; akin to Latin ruber red — more at red

Learn More About ruby

Time Traveler for ruby

Time Traveler

The first known use of ruby was in the 14th century

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Statistics for ruby

Last Updated

19 Jun 2022

Cite this Entry

“Ruby.” Dictionary, Merriam-Webster, Accessed 1 Jul. 2022.

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More Definitions for ruby


ru·​by | \ ˈrü-bē How to pronounce ruby (audio) \
plural rubies

Kids Definition of ruby

1 : a gemstone of a deep red color
2 : a deep purplish red


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