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 In my Spiced Cranberry Cake With Raspberry Cream Cheese Frosting, the fruit speckled throughout looks like ruby-red comets leaving a trail of juices in their path. Nik Sharma,, "Brown Kitchen: Spiced Cranberry Cake With Raspberry Cream Cheese Frosting," 13 Dec. 2019 Fergie hasn't passed her ruby ring down to her children (yet). Amanda Garrity, Good Housekeeping, "The Story Behind Sarah Ferguson's Extravagant Engagement Ring," 30 Sep. 2019 The pieces range from a $1,600 white gold and diamond bracelet to a $17,500 necklace with diamonds and rubies. Annika Hom,, "Four Lynn girls design a jewelry collection worth thousands," 21 Aug. 2019 This is a beautiful ruby jewel of a cake from longtime contributor Joan Harvey. oregonlive, "16 Thanksgiving cranberry recipes that put sauce out of a can to shame," 23 Nov. 2019 Just a Post-it note of ingredients and an order for a brown butter crepe cake with strawberry ruby buttercream. Dahlia Ghabour, The Courier-Journal, "Who run the world? This Louisville culinary program proves it's female chefs," 22 Oct. 2019 There are currently about six hundred and twenty thousand items by fifty-five hundred different designers on TheRealReal’s Web site, ranging from a four-hundred-and-eighty-eight-thousand-dollar loose ruby to a fifty-dollar Marc Jacobs headband. Susan Orlean, The New Yorker, "TheRealReal’s Online Luxury Consignment Shop," 14 Oct. 2019 Bluefin tuna from Japan bursts with ruby-red richness, brushed with Lam’s housemade soy sauce. Michael Mayo,, "Review: Kaizen Sushi Bar in Fort Lauderdale shines with quality and value," 20 Nov. 2019 Democrats celebrated an early win in the ruby-red state of Kentucky last week when Attorney General Andy Beshear narrowly beat incumbent Governor Matt Bevin in a tight gubernatorial race. Nicole Goodkind, Fortune, "‘Vladmir Putin Could Not Create Better Content.’ Election Security Experts Worry False Claims of Fraud Will Disrupt 2020 Results," 12 Nov. 2019 Recent Examples on the Web: Adjective With the tartness of ruby red grapefruit, the snap of radishes and salty creamy feta, the salad morphs into a more modern interpretation. Washington Post, "Freshen up the Waldorf salad with persimmons, Asian pear and grapefruit," 24 Dec. 2019 While sparkling red wine may conjure up bad college memories, the world of ruby bubbles has changed a lot from the sickly sweet vintages many of us once tried. Lauren Hubbard, Town & Country, "The Best Foods to Pair with Champagne," 19 Dec. 2019 Across the majestic, old theater’s big silver screen a young Judy Garland once danced in dazzling ruby slippers down a yellow brick road., "GREENFIELD – Across the majestic, old theater’s big silver screen a young Judy Garland once danced in dazzling ruby slippers down a yellow brick road.," 14 Nov. 2019 Dolly Parton has many beauty signatures: Sky-high blond hair, indigo blue lids, and ruby red lips among them. Lauren Valenti, Vogue, "Dolly Parton Reveals She Recorded “9 to 5” Using Her Acrylic Nails as an Instrument," 21 Nov. 2019 The Red Rocks Amphitheatre is one of the most beautiful and beloved in the country, and watching the sunset on these ruby red cliffs will be a real treat for all. Kat Bein, Billboard, "Get Your Rave On at These 10 Best 2019 Halloween Parties Across America," 30 Oct. 2019 Both totes come in four hues, including black leather, pine leather, buff leather and ruby leather. Banu Ibrahim, CNN Underscored, "Instagram's favorite suitcase brand Away just debuted new designs, including a tote," 19 Sep. 2019 Use bright, bold colors such as hot pink, bright yellow, vibrant green and ruby red. Ap Mcclatchy, The Mercury News, "Photos and tips: The do’s and don’ts of kid-friendly colors," 9 July 2019 But the ruby slippers are so much more than a plot device in a beloved film. Maureen Lee Lenker,, "How the ruby slippers from The Wizard of Oz became the ultimate Hollywood symbol," 25 Aug. 2019

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.

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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

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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

8 Jan 2020

Cite this Entry

“Ruby.” The Dictionary, Merriam-Webster Inc., Accessed 19 January 2020.

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More Definitions for ruby


How to pronounce ruby (audio)

English Language Learners Definition of ruby

: a deep red stone that is used in jewelry
: a dark red color


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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More from Merriam-Webster on ruby

Rhyming Dictionary: Words that rhyme with ruby

Spanish Central: Translation of ruby

Nglish: Translation of ruby for Spanish Speakers

Britannica English: Translation of ruby for Arabic Speakers Encyclopedia article about ruby

Comments on ruby

What made you want to look up ruby? Please tell us where you read or heard it (including the quote, if possible).


to insert between existing elements

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