blue

adjective
\ ˈblü \
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

Winners of the Yard Sign Wars Tandem NYC and Tony Casas, designers of Alexandria Ocasio-Cortez and Beto O’Rourke’s campaign graphics, respectively, shook up a field mired in American flags and red, white and blue. Mark Lamster, Curbed, "2018 in architecture: The good, the bad, and the urbanism," 27 Dec. 2018 And here’s a tip: The season is looking red, white, and blue, reclaiming notions of patriotism and patriotisme for all. Edward Barsamian, Vogue, "10 Best Dressed: Week of December 10, 2018," 10 Dec. 2018 From recreations of 18th-century taverns to the famed Liberty Bell, Philadelphia is a must-see for anyone who loves the red, white, and blue. Juliet Izon, Country Living, "7 Patriotic Sights to Take In on the Ultimate Philadelphia Road Trip," 15 Nov. 2018 With warm weather, blue skies and miles of lush scenery to enjoy, Condé Nast Traveler, in partnership with Booking.com, is officially calling it road trip season. Condé Naste Traveler: Post, "The Best Summer Road Trips," 26 Oct. 2018 Red-white-and-blue beach balls bounced atop the line, rock-concert style, as the Rolling Stones and Lynyrd Skynyrd blared through loudspeakers. Manny Fernandez, The Seattle Times, "Line for Trump’s Houston rally formed more than a day in advance," 22 Oct. 2018 People shared exclusive photos of the bridal party, showing Prince George playing with the other page boys wearing a white and blue outfit by Amaia. Maggie Maloney, Town & Country, "Prince George and Princess Charlotte Were in Yet Another Wedding This Weekend," 24 Sep. 2018 Ben Geskin posted a series of pictures of prototypes to Twitter that purport to show off the XC in red, white, and blue colors. Andrew Liptak, The Verge, "New leak suggests that Apple’s entry-level phone will be called the iPhone XC," 9 Sep. 2018 But not everything is a de facto prototype: In the entry hallway, a large-scale black-and-white abstract painting with pops of fiery red and light blue, by Samuel’s artist father, Roger Sandes, takes up one wall. Gisela Williams, ELLE Decor, "The Vivacious 18th-Century Marakesh Medina of Two L.A. Transplants," 28 Dec. 2018

Recent Examples on the Web: Noun

Florida hasn’t had a Democratic governor since 1999, and many voters are cheering Mr. Gillum’s pledge to turn the state blue. Kyle Peterson, WSJ, "Trumpism’s Big Florida Test," 2 Nov. 2018 Cruz’s attacks on O’Rourke seem to be working in the state People across the country are paying attention to the Democrat who could maybe, emphasis on maybe, turn Texas blue. Tara Golshan, Vox, "Beto O’Rourke fundraised triple what Sen. Ted Cruz did in the past 3 months," 12 Oct. 2018 Perhaps some bold blues and greens, or even a daring yellow? Kaleigh Fasanella, Allure, "KKW Beauty Is Dropping a New Makeup Collection for Kim Kardashian’s 38th Birthday," 26 Sep. 2018 Its blue fills up the entirety of the high-rise buildings, save for the vertical pattern of the windows. Liz Stinson, Curbed, "Behold, Hokusai’s famous wave print stretching across six buildings," 18 Dec. 2018 The new set also fully exposes Ms. Joplin’s voice at its studio peak and proves that her psychedelic-blues was her own, born out of pain and a Texas youth spent yearning for a way out of town. Marc Myers, WSJ, "‘Sex, Dope & Cheap Thrills’ Review: A Classic Album’s Untold Story," 20 Nov. 2018 Their sashes included pops of blues and greens, matching the colors of mother-of-the-bride Sarah Ferguson and maid-of-honor Princess Beatrice. Harper's Bazaar Staff, Harper's BAZAAR, "Eugenie & Jack's Bridesmaids and Pageboys Wore Less Traditional Looks Than Meghan & Harry's," 12 Oct. 2018 One figure is a wash of blues and pinks, a few hazy lines denoting her waist and thigh. Christina Cacouris, Marie Claire, "This Artist Uses Gold and Glitter to Destigmatize Period Blood," 11 Sep. 2018 Here's a cure for your Monday blues: American, British Airways, Delta, Icelandair, Lufthansa, Swiss, and United are all running cheap flights from at least four U.S. cities on the east coast to Europe right now, according to Scott's Cheap Flights. Bridget Hallinan, Condé Nast Traveler, "Flight Deal: East Coast to Europe from $362 Round-Trip," 16 July 2018

Recent Examples on the Web: Verb

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 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 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. refinery29.com, "Gigi Hadid Is An 'Illegal Alien' In New Fashion Ad – & People Are Not Happy," 27 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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Learn More about blue

Dictionary Entries near blue

blude

bludge

bludgeon

blue

blue acara

blue agave

blue alert

Statistics for blue

Last Updated

19 Jan 2019

Look-up Popularity

Time Traveler for blue

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

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More Definitions for blue

blue

adjective

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

the blue : the sky or the sea

blue

noun
\ ˈblü \

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

blue

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?

blue

adjective
\ ˈblü \
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

Rhyming Dictionary: Words that rhyme with blue

Thesaurus: All synonyms and antonyms for 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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