(1)   Causing dejection
"A blue day"
"The dark days of the war"
"A week of rainy depressing weather"
"A disconsolate winter landscape"
"The first dismal dispiriting days of November"
"A dark gloomy day"
"Grim rainy weather"
(2)   Of the color intermediate between green and violet; having a color similar to that of a clear unclouded sky
"October's bright blue weather"- Helen Hunt Jackson
"A blue flame"
"Blue haze of tobacco smoke"
(3)   Characterized by profanity or cursing
"Foul-mouthed and blasphemous"
"Blue language"
"Profane words"
(4)   Low in spirits
"Lonely and blue in a strange city"
"Depressed by the loss of his job"
"A dispirited and resigned expression on her face"
"Downcast after his defeat"
"Feeling discouraged and downhearted"
(5)   Belonging to or characteristic of the nobility or aristocracy
"An aristocratic family"
"Aristocratic Bostonians"
"Aristocratic government"
"A blue family"
"Blue blood"
"The blue-blooded aristocracy"
"Of gentle blood"
"Patrician landholders of the American South"
"Aristocratic bearing"
"Aristocratic features"
"Patrician tastes"
(6)   Used to signify the Union forces in the American Civil War (who wore blue uniforms)
"A ragged blue line"
(7)   Suggestive of sexual impropriety
"A blue movie"
"Blue jokes"
"He skips asterisks and gives you the gamy details"
"A juicy scandal"
"A naughty wink"
"Naughty words"
"Racy anecdotes"
"A risque story"
"Spicy gossip"


(8)   Any of numerous small butterflies of the family Lycaenidae
(9)   The sodium salt of amobarbital that is used as a barbiturate; used as a sedative and a hypnotic
(10)   Blue clothing
"She was wearing blue"
(11)   Blue color or pigment; resembling the color of the clear sky in the daytime
"He had eyes of bright blue"
(12)   Any organization or party whose uniforms or badges are blue
"The Union army was a vast blue"
(13)   The sky as viewed during daylight
"He shot an arrow into the blue"
(14)   Used to whiten laundry or hair or give it a bluish tinge


(15)   Turn blue


From bla, blo, blue, blew, blewe from blǣwen, contraction of Old English blǣhǣwen "deep blue, perse" [lit. "blue-color"], influenced in form by Anglo-Norman blew, bl(i)u, bl(i)ef "blue, livid, discolored" from , from Frank. blao from , from (a suffixed form of ); cognate with Old Church Slavonic , Russian , Polish , Ancient Greek , Armenian , Sanskrit , and Old English (English ). akin to Old English blāw "blue", Old Frisian blāw (West Frisian blau), MD blā(u), Old High German blāo (G blau), Old Norse blār. See also blae.


  1. Having a color shade close to blue.
  2. Depressed, melancholic, sad.
  3. Pornographic.
  4. Supportive of or dominated by the Democratic Party.
    Many of the traditionally blue states are on the east and west coasts.
    Congress turned blue in the mid-term elections.
  5. Of the higher-frequency region of the part of the electromagnetic spectrum which is relevant in the specific observation.
  6. Extra rare; left very red and cold.


  1. The colour of the clear sky or the deep sea, between green and violet in the visible spectrum, and one of the primary additive colours for transmitted light; the colour obtained by subtracting red and green from white light using magenta and cyan filters.
  2. A blue dye or pigment.
  3. Bluing.
  4. Blue clothing
    The boys in blue marched to the pipers.
  5. A blue uniform. See blues.
  6. The sky, literally or figuratively.
    The ball came out of the blue and cracked his windshield.
    His request for leave came out of the blue.
  7. The ocean; deep waters.
  8. Anything blue, especially to distinguish it from similar objects differing only in color.
  9. One of the colour balls used in snooker with a value of 5 points.
  10. A bluefish.
  11. An argument.
  12. A liquid with an intense blue colour, added to a laundry wash to prevent yellowing of white clothes.
  13. a type of firecracker.


  1. To make blue.
  2. To treat the surface of steel so that it is passivated chemically and becomes more resistant to rust.
    See Wikipedia article on bluing steel:
  3. To turn blue.

Related terms