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

Keep scrolling for more

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.
See More

Recent Examples on the Web: Adjective

The family Christmas card that year showed two sweaty siblings kneeling, mid-hike, against an electric-blue glacier. Sarah Firshein, Condé Nast Traveler, "How I Learned to Love the Do-Nothing Beach Vacation," 14 Aug. 2019 The United Launch Alliance Atlas V rocket blasted off at 6:13 a.m. Tuesday from Kennedy Space Center and quickly cut through Florida’s black sky in a brilliant display of light-blue luminescence. Joe Mario Pedersen, orlandosentinel.com, "’I just saw the weirdest thing,’ spectators across Florida marvel, tweet about ULA Atlas V rocket launch," 8 Aug. 2019 Sofia and Leonor looked summery and casual in white sneakers and simple white shirts, while Queen Sofia opted for a bold, all-blue ensemble. Sarah Madaus, Town & Country, "Queen Letizia Just Stepped Out In The Perfect Summer Jumpsuit," 2 Aug. 2019 The most recent example involves a black car on a rural road on Australia’s Gold Coast, drifting slowly, spinning its wheels, pumping out billowing clouds of powder-blue smoke. Carina Chocano, New York Times, "When Gender Reveal Videos Go Spectacularly, Cathartically Wrong," 1 Aug. 2019 In the rest of the downstairs rooms, the designers moved towards shades of blue without veering too bold. Hadley Keller, House Beautiful, "This Suburban New Jersey Home Feels Like an Alpine Chalet," 1 Aug. 2019 Candle 03 caught my eye for the earthy design, with a colorful half-circle punch of blue or orange. Sunset Staff, Sunset Magazine, "Pull This Pork, Dip That Chip, and 5 More Things to See & Do This Week," 29 July 2019 No player in all-blue was unaccountable for their poor opening, as Reading started well, however, Chelsea grew into the game much due to the performance of Ross Barkley. SI.com, "Reading 3-4 Chelsea: Report, Ratings & Reaction as Mason Mount Double Earns Blues Error-Strewn Win," 28 July 2019 The lawyers also said Epstein, who has appeared at recent court hearings in a dark-blue jail smock and pants, has every intention of defending himself at trial. Kevin Mccoy, USA TODAY, "Jeffrey Epstein appeals no-bail decision in child sex-trafficking case," 23 July 2019

Recent Examples on the Web: Noun

Back in the ‘50s and early 60s, the Brits were often better at appreciating the richness of American popular music, particularly the vernacular music of the blues, than many white listeners in the United States were. John Adamian, courant.com, "British blues icon John Mayall at Infinity Hall," 11 Aug. 2019 Lora’s color palette of deep blues, cool grays and rich reds pays tribute to Stillwater’s German and Scandinavian settlers. Nancy Ngo, Twin Cities, "Looking for a unique getaway? Go boutique at one of these new and not-so-far-away hotels," 10 Aug. 2019 Wood panels and trims are white, creating a crisp backdrop for a subtle color palette of soft blues and turquoises. oregonlive.com, "2019 Street of Dreams: French country house with a striking copper porch roof," 6 Aug. 2019 Floor-to-ceiling glass, a muted palette of blues and browns and grays, no clutter, designed for flow. Alexandra Lange, Curbed, "The Big Little Lie of the TV kitchen island," 1 Aug. 2019 Create an entryway that’s orderly but not too polished, with a color palette inspired by the landscape: dusty reds and a range of blues to capture every shade of the sky, mixed with warm browns. Jessica Dailey, ELLE Decor, "The Ultimate Guide to Infusing a Western-Chic Vibe Into Your Home," 1 Aug. 2019 Immediately, his piano playing represented some big new possibilities, connecting the shaded harmonies of Romanticism and the earth tones of the blues. Giovanni Russonello, New York Times, "Herbie Hancock Is Still Breaking Rules," 29 July 2019 Named after the British princess who stopped there for a dip in the 1950s, the water here is the bluest of blues, clear and calm and the ideal place to relax before jumping on the ferry to head back to Kingstown. Anquanette Gaspard, Essence, "Get Lost: 72 Hours in St. Vincent," 29 July 2019 Algene works three days a week that the museum that celebrates the father of the blues, William Christopher Handy, the composer and musician who was born in 1873 in the two-room log cabin that stands behind the museum today. Michelle Matthews | Mmatthews@al.com, al.com, "All music lovers should visit the W.C. Handy Home in Florence," 24 July 2019

Recent Examples on the Web: Verb

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 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.

See More

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

Keep scrolling for more

Learn More about blue

Dictionary Entries near blue

blude

bludge

bludgeon

blue

blue acara

blue agave

blue alert

Statistics for blue

Last Updated

17 Aug 2019

Look-up Popularity

Time Traveler for blue

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

See more words from the same century

Keep scrolling for more

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

Keep scrolling for more

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

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

WORD OF THE DAY

a wrong name or inappropriate designation

Get Word of the Day daily email!

Test Your Vocabulary

Summer 2019 Words of the Day Quiz

  • a-bowl-of-peach-sorbet-with-cut-peaches-next-to-it
  • Which is a synonym of desideratum?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Citation

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!