\ ˈblü How to pronounce blue (audio) \
bluer; bluest

Definition of blue

 (Entry 1 of 3)

1 : of the color whose hue is that of the clear sky : of the color blue (see blue entry 2 sense 1) a blue jacket her bright blue eyes The house is blue with white shutters.
2a : bluish the blue haze of tobacco smoke
b : discolored by or as if by bruising blue with cold
c : bluish gray a blue cat
3a : low in spirits : melancholy has been feeling blue
b : marked by low spirits : depressing a blue funk things looked blue
4 : wearing blue the blue team
5 of a woman : learned, intellectual … the ladies were very blue and well-informed …— W. M. Thackeray
6 : puritanical … a blue Sunday city …— James Street
7a : profane, indecent a blue movie
b : off-color, risqué blue jokes
8 music : of, relating to, or used in blues (see blues sense 3) a blue song
9 US politics : tending to support Democratic candidates or policies As has become increasingly clear over the past few general elections, with their red states and blue states, an American Presidential campaign is no longer truly national.— Hendrik Hertzberg — compare purple sense 3, red sense 5
blue in the face
: extremely exasperated argued until he was blue in the face

blue

noun

Definition of blue (Entry 2 of 3)

1 : a color whose hue is that of the clear sky or that of the portion of the color spectrum lying between green and violet Blue is his favorite color. shades of blue
2a : a pigment or dye that colors blue
b : bluing adding blue to the laundry
3a : blue clothing or cloth will be wearing blue
b blues plural : a blue costume or uniform wearing their dress blues
4a : a Union soldier in the American Civil War
b often capitalized : the Union army the Blue versus the Gray
5a(1) : sky
(2) : the far distance disappeared into the blue
b : sea
6 : a blue object
7 : bluestocking praised the writings of her fellow blues
8 biology : any of numerous small chiefly blue butterflies (family Lycaenidae)
9 : bluefish fishing for blues
11 physics : one of the three colors (see color entry 1 sense 15) that quarks have in the theory of quantum chromodynamics One cannot have a single quark on its own because it would have a color (red, green, or blue). Instead, a red quark has to be joined to a green and a blue quark by a "string" of gluons (red + green + blue = white). Such a triplet constitutes a proton or a neutron.— Stephen Hawking
out of the blue
: without advance notice : unexpectedly the job offer came out of the blue

blue

verb
blued; blueing or bluing; blues

Definition of blue (Entry 3 of 3)

transitive verb

: to make (something) blue in color: such as
a : to dye, tint, or paint (something) blue Last, the generation of the grandmothers, in immaculately blued hair…— John Updike Tattoos blued his upper arms.— Jerry Spinelli
b : to heat (iron or steel) to about 550 to 600 degrees Fahrenheit so that it acquires a protective bluish coating the blued barrel of the gun Between banks shrouded with snow, the river gleamed darkly, like blued steel with gold chips of sunlight dancing on each riffle.— Pete Bodo

intransitive verb

: to turn blue their blueing fingers
blue the air
informal
: to curse angrily He sliced the air with his fists and blued the air with his mouth.— Steve Kelley I have been stealing my father's copy (of Massachusetts Wildlife) for a long time, but last week he found an issue on my desk and blued the air a bit.— Stephen King Donovan

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Other Words from blue

Adjective

bluely adverb
blueness noun

Examples of blue in a Sentence

Adjective shocked at the blue banter she heard on that satellite-radio talk show a cold, dreary day always leaves me blue Noun Her favorite color is blue. a mixture of blues and greens They sailed off into the blue.
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Recent Examples on the Web: Adjective Get in the holiday spirit by decorating your home in red, white, and blue. Emily Vanschmus, Better Homes & Gardens, "Create a Memorable Fourth of July with This Free Bingo Game," 30 June 2020 He was last seen on Sunday, June 21, hiking in Paradise, wearing a light blue shirt under a black jacket, black shorts and dark Nike shoes. David Oliver, USA TODAY, "Mount Rainier National Park in Washington searching for three missing hikers," 29 June 2020 Kasai Japanese Steakhouse Come in July 4-5 wearing red, white and blue or the American flag and get 10% off your bill. Georgann Yara, The Arizona Republic, "21 metro Phoenix restaurants with deals and specials for 4th of July," 29 June 2020 He was last seen wearing a light blue shirt under a black jacket, black shorts, and dark Nike shoes. Fox News, "Searches underway for 3 Mount Rainier hikers missing in separate incidents," 28 June 2020 He was last seen wearing a blue, white and purple shirt with black jeans and white shoes and was armed with a handgun. Sophie Carson, Milwaukee Journal Sentinel, "Milwaukee police release photos of 3 suspects sought in arson, shooting during civil unrest," 24 June 2020 She was last seen wearing a dark blue tie dye shirt, shorts and flip flops. Howard Koplowitz | Hkoplowitz@al.com, al, "Authorities searching for ‘endangered’ 41-year-old woman who disappeared in Enterprise," 22 June 2020 Bryant, who took over after the previous chief resigned resigned in the wake of the shooting, wore a navy blue shirt Thursday, rather than the white shirt typically worn by command staff, to show solidarity with the officers. Kate Brumback, Anchorage Daily News, "Atlanta police call out sick to protest charges in officer’s shooting of black man," 19 June 2020 According to the criminal complaint from Albuquerque police, cell phone footage recorded by a bystander shows a man in a blue shirt, later identified as Baca, appearing to protect the statue. CNN, "New Mexico prosecutor criticizes police and drops top charge in Albuquerque protest shooting," 18 June 2020 Recent Examples on the Web: Noun Cincinnati Enquirer Jürgen Locadia will don the orange and blue of FC Cincinnati for another year. Pat Brennan, Cincinnati.com, "FC Cincinnati extends Jürgen Locadia's loan stay one year," 19 June 2020 While many people appreciate the gifts, receiving money out of the blue can be awkward. Dalvin Brown, USA TODAY, "Protests: Why are some white people randomly gifting black people money?," 13 June 2020 Inside the Pavilion at Pan Am, flower arrangements in IU red and white and Cathedral blue and gold flanked Beaty's casket. David Lindquist, The Indianapolis Star, "'He made you feel like family': Chris Beaty remembered for positive influence," 12 June 2020 One of the veteran cops pushing systemic change is Joe Smarro, the San Antonio cop who drives a truck, prays to God, and backs the blue. Jasper Craven, The New Republic, "The Police’s “Sheepdog” Problem," 11 June 2020 Dye made good on the investment in his second year when his Pirates walked into North Carolina’s Kenan Memorial Stadium and beat the Carolina blue out of UNC 38-17. Joseph Goodman | Jgoodman@al.com, al, "Iconic Auburn coach Pat Dye was symbol of SEC toughness," 1 June 2020 Created by Mosser Glass out of Ohio, the catchall dishes come in a mind-blowing variety of colors—I'm now considering ordering a second one in the more transparent deep blue. Megan Spurrell, Condé Nast Traveler, "The Home Decor We're Buying to Remind Us of Our Favorite Places," 26 May 2020 Out of the blue, a ticket agent handed her a first-class ticket. Chrisopher Elliott, USA TODAY, "These travel angels are committing random acts of kindness," 5 June 2020 The same goes for this blue dot fixed in its green milieu. Jessica Boddy, Popular Science, "Stare at this blue dot long enough, and it’ll disappear," 31 May 2020 Recent Examples on the Web: Verb There are signs that Texas, due to changing demographics, may be the next Electoral College giant to turn from red, if not to blue, then at least to purple. John A. Farrell, The New Republic, "TNR Newsletters. Must reads. 5 days a week.," 16 Apr. 2020 So why won't blue shampoo cut it for keeping cool brunettes cool? Taylore Glynn, Marie Claire, "Brunettes: Green Shampoo Is Here to Save Your Color," 23 Jan. 2020 Ruscillo has studied the production of the ancient purple dye, including experimenting with it to make colors from pink to blue to almost black, though she isn't involved in the excavations on Chrysi. Fox News, "Gold and jewels found on Minoan Island devoted to the color purple," 12 Dec. 2019 The pair were all smiles for the appearance at St. James’s Palace, where Kate blue a royal blue Issa dress that matched her sapphire engagement ring, which once belonged to William’s mother Princess Diana. Stephanie Petit, PEOPLE.com, "See the Sweet Photos of Meghan and Harry (and Kate and William!) the Queen Has on Display at Home," 25 July 2019 Give classic orange and blue a dose of edge with abstract prints and a hit of dark à la Samantha Angelo. Laurel Benedum, ELLE Decor, "7 Decadent Rooms Inspired By This Weekend's Chicest Celebrity Outfits," 4 June 2019 Stop painting the same models blue and calling it revolutionary. Sandra Salibian | Wwd, latimes.com, "Designer Jeremy Scott responds to social media controversy about Moschino campaign post," 26 June 2018 Stop painting the same models blue and calling it revolutionary. Sandra Salibian | Wwd, latimes.com, "Designer Jeremy Scott responds to social media controversy about Moschino campaign post," 26 June 2018 Stop painting the same models blue and calling it revolutionary. Sandra Salibian | Wwd, latimes.com, "Designer Jeremy Scott responds to social media controversy about Moschino campaign post," 26 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'blue.' 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 blue

Adjective

13th century, in the meaning defined at sense 1

Noun

14th century, in the meaning defined at sense 1

Verb

1606, in the meaning defined at transitive sense

History and Etymology for blue

Adjective, Noun, and Verb

Middle English, from Anglo-French blef, blew, of Germanic origin; akin to Old High German blāo blue; akin to Latin flavus yellow

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Time Traveler for blue

Time Traveler

The first known use of blue was in the 13th century

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Statistics for blue

Last Updated

5 Jul 2020

Cite this Entry

“Blue.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/blue. Accessed 6 Jul. 2020.

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More Definitions for blue

How to pronounce blue (audio)

English Language Learners Definition of blue

 (Entry 1 of 2)

: having the color of the clear sky
: sad or unhappy

blue

noun

English Language Learners Definition of blue (Entry 2 of 2)

: the color of the clear sky
literary : the sky or the sea

blue

noun
\ ˈblü How to pronounce blue (audio) \

Kids Definition of blue

 (Entry 1 of 2)

1 : the color of the clear daytime sky
2 : blue clothing or cloth
out of the blue
: suddenly and unexpectedly

Other Words from blue

bluish adjective
bluer; bluest

Kids Definition of blue (Entry 2 of 2)

1 : of the color of the sky : of the color blue blue ink
2 : sad sense 1 Why are you so blue?
\ ˈblü How to pronounce blue (audio) \
bluer; bluest

Medical Definition of blue

 (Entry 1 of 2)

: of the color blue

blue

noun

Medical Definition of blue (Entry 2 of 2)

1 : a color whose hue is that of the clear sky or that of the portion of the color spectrum lying between green and violet
2 : a pigment or dye that colors blue — see prussian blue

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More from Merriam-Webster on blue

Thesaurus: All synonyms and antonyms for blue

Rhyming Dictionary: Words that rhyme with blue

Spanish Central: Translation of blue

Nglish: Translation of blue for Spanish Speakers

Britannica English: Translation of blue for Arabic Speakers

Comments on blue

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