blue

adjective
\ 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

This is partly because context matters: O’Rourke is no longer a foil to a nationally recognizable Republican in a political race that could swing an infamously red state to blue. Lucy Diavolo, Teen Vogue, "Beto O'Rourke's Thirst-Trap Politics Won't Work on Me in the 2020 Democratic Primary," 9 Apr. 2019 Unless your shirt is blue...then maybe you should be concerned! Kaleigh Fasanella, Allure, "Carrie Underwood Shared a Glowing Makeup-Free Selfie and Fans Are in Awe," 1 Apr. 2019 The currency mix-up can sort of be rationalized by the fact that Malaysia and the Philippines have banknotes in similar shades of blue. Christopher Bagley, Condé Nast Traveler, "Sailing the South China Sea Is the Best Way to See Southeast Asia," 15 Nov. 2018 Ice usually appears white or blue because water absorbs the other colors of the visible spectrum. David Grossman, Popular Mechanics, "Green Icebergs Could Be Secretly Feeding All Ocean Life," 7 Mar. 2019 The duo stepped out in traditional Indian apparel — Priyanka wore a light blue suit covered in intricate cream and pink embellishments, while Nick opted for a pink kurta and cream bottoms. Mekita Rivas, Teen Vogue, "Everything Priyanka Chopra and Nick Jonas Wore During Their Wedding Celebrations," 29 Nov. 2018 Harry, not to be outdone by his wife's chic attire, traded in his go-to navy blue suit for a trim tuxedo. Sally Holmes, Marie Claire, "Meghan Markle Had the Best Reaction to Prince Harry Kissing an Elephant Puppet," 19 Nov. 2018 Authorities said Cordie exited the vehicle without her shoes or cell phone and was wearing a blue floral paint suit. Bradford Betz, Fox News, "Body believed to be that of missing Oregon woman, authorities say," 24 Aug. 2018 Retro blue, vibrant violet, or a bright fuschia will add an element of surprise and make your eyes pop. Maya Allen, Marie Claire, "9 Pretty Spring 2019 Makeup Trends You're Going to See Everywhere," 5 Mar. 2019

Recent Examples on the Web: Noun

Her Manhattan apartment is a collage of pinks, blues, butter yellows, purples, even chartreuse—super-saturated tones that leap from the walls and furnishings. Amanda Sims, House Beautiful, "11 Truly Surprising Ways to Use Color," 11 Mar. 2019 The troupe’s fresh take on the art form — drawing on blues, spirituals and gospel for inspiration — changed the perception of American dance. Matthew J. Palm, OrlandoSentinel.com, "2 shows for arts lovers head to Dr. Phillips Center," 6 July 2018 Union blues: California Democrats have good reason to be worried over the U.S. Supreme Court ruling barring public employee unions from extracting dues from workers who don’t want to be in the union to help pay for collective bargaining. Matier & Ross, SFChronicle.com, "This month’s SF Marathon runs into obstacle at Golden Gate Bridge," 1 July 2018 The inclusion of blue liner matched the blue of her dress. Lauren Rearick, Teen Vogue, "Storm Reid Wore Blue Eyeliner at the “InStyle” Awards," 24 Oct. 2018 For the casual costume, Garrett decided against the light blue of Eastern. John Kelly, Washington Post, "In 1988, the Eastern High School choir took on the world. They felt like winners.," 2 July 2018 Mount Dora fests with the best, boasting big weekends celebrating everything from blueberries to the blues. A.d. Thompson, OrlandoSentinel.com, "Mount Dora Neighborhood Guide," 21 June 2018 In addition to our overall moods (the winter blues are real, y'all), our hair has been seriously suffering for the last four months. Glamour, "27 Cool Spring Hairstyles to Try (or Just Stare at) This Season," 11 Mar. 2019 Her State of the Union response and her feat of nearly turning Georgia blue has opened a wide field of possibilities for her. Brittney Cooper, Marie Claire, "Stacey Abrams Is Just Getting Started," 11 Mar. 2019

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. 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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Learn More about blue

Dictionary Entries near blue

blude

bludge

bludgeon

blue

blue acara

blue agave

blue alert

Statistics for blue

Last Updated

13 Apr 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
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

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 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

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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