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Blue Flag

  

      n   an award given to a seaside resort that meets EU standards of cleanliness of beaches and purity of water in bathing areas  
English Collins Dictionary - English Definition & Thesaurus  
Collins
blue  
      n  
1    any of a group of colours, such as that of a clear unclouded sky, that have wavelengths in the range 490--445 nanometres. Blue is the complementary colour of yellow and with red and green forms a set of primary colours  
   Related adj       cyanic  
2    a dye or pigment of any of these colours  
3    blue cloth or clothing  
dressed in blue     
4   
a    a sportsman who represents or has represented Oxford or Cambridge University and has the right to wear the university colour (dark blue for Oxford, light blue for Cambridge)  
an Oxford blue     
b    the honour of so representing one's university  
5      (Brit)      an informal name for       Tory  
6    any of numerous small blue-winged butterflies of the genera Lampides, Polyommatus, etc.: family Lycaenidae  
7    Archaic      short for       bluestocking  
8    Slang   a policeman  
9      (Archery)   a blue ring on a target, between the red and the black, scoring five points  
10    a blue ball in snooker, etc  
11       another name for       blueing  
12      (Austral. and N.Z.)  
slang   an argument or fight  
he had a blue with a taxi driver     
13      (Also)    bluey     (Austral. and N.Z.)  
slang   a court summons, esp. for a traffic offence  
14      (Austral. and N.Z.)  
informal   a mistake; error  
15    out of the blue   apparently from nowhere; unexpectedly  
the opportunity came out of the blue     
16    into the blue   into the unknown or the far distance  
      adj   , bluer, bluest  
17    of the colour blue  
18    (of the flesh) having a purple tinge, as from cold or contusion  
19    depressed, moody, or unhappy  
20    dismal or depressing  
a blue day     
21    indecent, titillating, or pornographic  
blue films     
22    bluish in colour or having parts or marks that are bluish  
a blue fox, a blue whale     
23    Rare   aristocratic; noble; patrician  
a blue family         See       blue blood  
      vb   , blues, blueing  
  bluing   , blued  
24    to make, dye, or become blue  
25    tr   to treat (laundry) with blueing  
26    tr  
Slang   to spend extravagantly or wastefully; squander,   (See also)        blues  
     (C13: from Old French bleu, of Germanic origin; compare Old Norse blar, Old High German blao, Middle Dutch bla; related to Latin flavus yellow)  
  bluely      adv  
  blueness      n  


black-and-blue  
      adj  
1    (of the skin) discoloured, as from a bruise  
2    feeling pain or soreness, as from a beating  
Blue   , Bluey  
      n     (Austral)  
informal   a person with red hair  
blue baby  
      n   a baby born with a bluish tinge to the skin because of lack of oxygen in the blood, esp. caused by a congenital defect of the heart  
blue bag  
      n     (in Britain)  
1    a fabric bag for a barrister's robes  
2    a small bag containing blueing for laundering  
blue beret  
      n   an informal name for a soldier of a United Nations peacekeeping force  
blue billy  
      n     (N.Z.)      an informal name for       dove prion  
     (probably from the name Billy)  
blue blood  
      n   royal or aristocratic descent  
     (C19: translation of Spanish sangre azul)  
  blue-blooded      adj  
blue buck  
      n      another name for the       blaubok  
blue cheese  
      n   cheese containing a blue mould, esp. Stilton, Roquefort, or Danish blue,   (Also called (Austral. and N.Z.))    blue vein  
blue chip  
      n  
1    a gambling chip with the highest value  
2      (Finance)  
a    a stock considered reliable with respect to both dividend income and capital value  
b    (as modifier)  
a blue-chip company     
3    modifier   denoting something considered to be a valuable asset  
blue cod  
      n   a common marine spiny-finned food fish, Parapercis colias, of the sub-Antarctic waters of New Zealand, esp. at the Chatham Islands, which is greenish blue with brown marbling and inhabits rocky bottoms. Its smoked flesh is considered a delicacy,   (Also called)    rock cod, pakirikiri, patutuki  
blue-collar  
      adj   of, relating to, or designating manual industrial workers  
a blue-collar union         Compare       white-collar       pink-collar  
blue devils  
      pl n  
1    a fit of depression or melancholy  
2    an attack of delirium tremens  
blue duck  
      n   a mountain duck, Hymenolaimus malacorhynchos, of New Zealand having a mostly lead-blue plumage  
Blue Ensign  
      n   an ensign having the Union Jack on a blue background at the upper corner of the vertical edge alongside the hoist: flown by Royal Navy auxiliary vessels, and, with some extra distinguishing mark or insignia, by certain yacht clubs  
   Compare       Red Ensign       White Ensign  
blue-eyed boy  
      n  
Informal     (chiefly Brit)   the favourite or darling of a person or group,   (Usual U.S. equivalent)    fair-haired boy  
blue-eyed grass  
      n   any of various mainly North American iridaceous marsh plants of the genus Sisyrinchium that have grasslike leaves and small flat starlike blue flowers  
blue-eyed Mary  
      n   a blue-flowered boraginaceous plant, Omphalodes verna, native to S Europe and cultivated in Britain  
blue-eyed soul  
      n  
Informal   soul music written and performed by White singers in a style derived from the blues  
Blue Flag  
      n   an award given to a seaside resort that meets EU standards of cleanliness of beaches and purity of water in bathing areas  
blue fox  
      n  
1    a variety of the arctic fox that has a pale grey winter coat and is bred for its fur  
2    the fur of this animal  
blue funk  
      n  
Slang   a state of great terror or loss of nerve  
blue goose  
      n   a variety of the snow goose that has a bluish-grey body and white head and neck  
blue-green algae  
      pl n      the former name for       cyanobacteria  
blue ground  
      n     (Mineralogy)      another name for       kimberlite  
blue grouse  
      n   a grouse, Dendragapus obscurus, of W North America, having a bluish-grey plumage with a black tail  
blue gum  
      n  
1    a tall fast-growing widely cultivated Australian myrtaceous tree, Eucalyptus globulus, having aromatic leaves containing a medicinal oil, bark that peels off in shreds, and hard timber. The juvenile leaves are bluish in colour  
2    any of several other eucalyptus trees,   (See also)        red gum       1  
blue heeler  
      n     (Austral. and N.Z.)   a cattle dog that controls cattle by biting their heels,   (Also called)    heeler  
blue jay  
      n   a common North American jay, Cyanocitta cristata, having bright blue plumage with greyish-white underparts  
blue john  
      n   a blue or purple fibrous variety of fluorspar occurring only in Derbyshire: used for vases, etc  
blue laws  
      pl n     (U.S. history)   a number of repressive puritanical laws of the colonial period, forbidding any secular activity on Sundays  
blue lias  
      n   a type of rock composed of alternating layers of bluish shale or clay and grey argillaceous limestone  
   See also       Lias  
Blue Mantle  
      n   one of the four pursuivants of the British College of Arms  
blue merle  
      n      See       merle   2  
blue moon  
      n  
once in a blue moon  
Informal   very rarely; almost never  
blue mould  
      n  
1      (Also called)    green mould   any fungus of the genus Penicillium that forms a bluish mass on decaying food, leather, etc  
2    any fungal disease of fruit trees characterized by necrosis and a bluish growth on the affected tissue: mostly caused by Penicillium species  
Blue Mountains  
      pl n  
1    a mountain range in the U.S., in NE Oregon and SE Washington. Highest peak: Rock Creek Butte, 2773 m (9097 ft.)  
2    a mountain range in the Caribbean, in E Jamaica: Blue Mountain coffee is grown on its slopes. Highest peak: Blue Mountain Peak, 2256 m (7402 ft.)  
3    a plateau in SE Australia, in E New South Wales: part of the Great Dividing Range. Highest part: about 1134 m (3871 ft.)  
blue murder  
      n  
Informal   a great outcry, noise; horrible din (esp. in such phrases as cry, howl, scream, etc., blue murder)  
Blue Nile  
      n   a river in E Africa, rising in central Ethiopia as the Abbai and flowing southeast, then northwest to join the White Nile. Length: about 1530 km (950 miles)  
blue note  
      n     (Jazz)   a flattened third or seventh, used frequently in the blues  
blue pencil  
      n  
1    deletion, alteration, or censorship of the contents of a book or other work  
      vb  
  blue-pencil   , -cils, -cilling, -cilled  
     (U.S.)   , -cils, -ciling, -ciled  
2    tr   to alter or delete parts of (a book, film, etc.), esp. to censor  
blue peter  
      n   a signal flag of blue with a white square at the centre, displayed by a vessel about to leave port  
     (C19: from the name Peter)  
blue pointer  
      n   a large shark, Isuropsis mako, of Australian coastal waters, having a blue back and pointed snout  
blue racer  
      n   a long slender blackish-blue fast-moving colubrid snake, Coluber constrictor flaviventris, of the U.S.  
blue riband   , ribband  
      n  
1    sometimes caps     (Also called (esp. U.S.))    blue ribbon   the record for the fastest sea journey between two places, esp. (in the 1920s and 30s) for a passenger liner between New York and Southampton  
2   
a    the most distinguished achievement in any field  
b    (as modifier)  
the blue-riband event of the meeting     
blue ribbon  
      n  
1    (in Britain) a badge of blue silk worn by members of the Order of the Garter  
2    a badge awarded as the first prize in a competition  
3      (U.S.)   a badge worn by a member of a temperance society  
blue-ribbon jury  
      n      a U.S. name for a       special jury  
Blue Ridge Mountains  
      pl n   a mountain range in the eastern U.S., extending from West Virginia into Georgia: part of the Appalachian mountains. Highest peak: Mount Mitchell, 2038 m (6684 ft.)  
blue rinse  
      n  
1    a rinse for tinting grey hair a silvery-blue colour  
      adj  
  blue-rinse  
2    denoting or typifying an elderly, well-groomed, socially active, and comparatively wealthy woman  
Blue Rod  
      n     (Brit)   officer of the Order of St Michael and St George,   (Full title)    Gentleman Usher of the Blue Rod  
blue run  
      n     (Skiing)   an easy run, suitable for beginners  
blue schist  
      n   a metamorphic rock formed under conditions of high pressure and relatively low temperature  
blue shift  
      n   a shift in the spectral lines of a stellar spectrum towards the blue end of the visible region relative to the wavelengths of these lines in the terrestrial spectrum: thought to be a result of the Doppler effect caused by stars approaching the solar system  
   Compare       red shift  
blue-sky  
      n   modifier   of or denoting theoretical research without regard to any future application of its result  
a blue-sky project     
blue-sky law  
      n     (U.S.)   a state law regulating the trading of securities: intended to protect investors from fraud  
blue spruce  
      n   a spruce tree, Picea pungens glauca, native to the Rocky Mountains of North America, having blue-green needle-like leaves,   (Also called)    balsam spruce  
blue stain  
      n     (Forestry)   a bluish discoloration of sapwood caused by growth of fungi  
blue vein  
      n     (Austral. and N.Z.)      another name for       blue cheese  
blue vitriol  
      n   the fully hydrated blue crystalline form of copper sulphate  
blue whale  
      n   the largest mammal: a widely distributed bluish-grey whalebone whale, Sibbaldus (or Balaenoptera) musculus, closely related and similar to the rorquals: family Balaenopteridae,   (Also called)    sulphur-bottom  
Cambridge blue  
      n  
1   
a    a lightish blue colour  
b    (as adj.)  
a Cambridge-blue scarf     
2    a person who has been awarded a blue from Cambridge University  
cobalt blue  
      n  
1      (Also called)    Thénards blue   any greenish-blue pigment containing cobalt aluminate, usually made by heating cobaltous sulphate, aluminium oxide, and phosphoric acid together  
2   
a    a deep blue to greenish-blue colour  
b    (as adj.)  
a cobalt-blue car     
Copenhagen blue  
      n  
a    a greyish-blue colour  
b    (as adj.)  
Copenhagen-blue markings     
Danish blue  
      n   a strong-tasting white cheese with blue veins  
duck-egg blue  
      n  
a    a pale greenish-blue colour  
b    (as adj.)  
duck-egg blue walls     
electric blue  
      n  
      adj  
a    a strong metallic blue colour  
b    (as adj.)  
an electric-blue evening dress     
gentian blue  
      n  
a    a purplish-blue colour  
b    (as adj.)  
gentian-blue shoes     
half-blue  
      n   (at Oxford and Cambridge universities) a sportsman who substitutes for a full blue or who represents the university in a minor sport  
   Compare       blue       4  
indigo blue  
      n  
      adj   indigo-blue when prenominal   the full name for indigo (the colour and the dye)  
Kerry blue terrier  
      n   an Irish breed of terrier with a soft silky wavy coat of a silvery-grey or smoky blue colour  
methylene blue  
      n   a dark-green crystalline compound forming a blue aqueous solution, used as a mild antiseptic and biological stain. Formula: C16H18N3SCl.3H2O,   (Also called)    methylthionine chloride  
midnight blue  
      n  
a    a very dark blue colour; bluish black  
b    (as adj.)  
a midnight-blue suit     
navy blue  
      n  
a    a dark greyish-blue colour  
b    (as adj)  
a navy-blue suit        (Sometimes shortened to)    navy  
     (C19: from the colour of the British naval uniform)  
Nile blue  
      n  
a    a pale greenish-blue colour  
b    (as adj)  
a Nile-blue carpet     
Oxford blue  
      n  
1   
a    a dark blue colour  
b    (as adj)  
an Oxford-blue scarf     
2    a person who has been awarded a blue from Oxford University  
peacock blue  
      n  
a    a greenish-blue colour  
b    (as adj)  
a peacock-blue car     
powder blue  
      n  
a    a dusty pale blue colour  
b    (as adj)  
a powder-blue coat     
Prussian blue  
      n  
1    any of a number of blue pigments containing ferrocyanide or ferricyanide ions  
2   
a    the blue or deep greenish-blue colour of this pigment  
b    (as adj)  
a Prussian-blue carpet     
Queensland blue  
      n     (Austral)   a pumpkin with a bluish skin  
robin's-egg blue  
      n     (Chiefly U.S)  
a    a light greenish-blue colour  
b    (as adj.)  
a robin's-egg-blue dress     
royal blue  
      n  
a    a deep blue colour  
b    (as adj.)  
a royal-blue carpet     
saxe blue  
      n  
a    a light greyish-blue colour  
b    (as adj.)  
a saxe-blue dress     
     (C19: from French Saxe Saxony, source of a dye of this colour)  
Saxon blue  
      n   a dye made by dissolving indigo in a solution of sulphuric acid  
     (C19: named after Saxony, where it originated)  
sky blue  
      n  
a    a light or pale blue colour  
b    (as adj.)  
a sky-blue jumper     
sky-blue pink  
      n  
      adj   a jocular name for a nonexistent, unknown, or unimportant colour  
steel blue  
      n  
a    a dark bluish-grey colour  
b    (as adj)  
steel-blue eyes     
Thénard's blue  
      n      another name for       cobalt blue  
     (C19: named after Baron L. J. Thénard; see thenardite)  
true-blue  
      adj  
1    unwaveringly or staunchly loyal, esp. to a person, a cause, etc.  
      n  
  true blue  
2      (Chiefly Brit)   a staunch royalist or Conservative  
trypan blue  
      n   a dye obtained from tolidine that is absorbed by the macrophages of the reticuloendothelial system and is therefore used for staining cells in biological research  
     (so called because it is trypano-cidal: see trypanosome, -cide)  
Wedgwood blue  
      n  
a    a pale blue or greyish-blue colour  
b    (as adj.)  
a Wedgwood-blue door     

English Collins Dictionary - English Definition & Thesaurus  

Collins

blue

  
1    azure, cerulean, cobalt, cyan, navy, sapphire, sky-coloured, ultramarine  
2      (figurative)   dejected, depressed, despondent, dismal, downcast, down-hearted, down in the dumps     (informal)   down in the mouth, fed up, gloomy, glum, low, melancholy, sad, unhappy  
3      (informal)   bawdy, dirty, indecent, lewd, naughty, near the knuckle     (informal)   obscene, risqué, smutty, vulgar, X-rated     (informal)  
  
Antonyms     
  
2    blithe, cheerful, cheery, chirpy     (informal)   elated, genial, happy, jolly, merry, optimistic, sunny  
3    decent, respectable  


true-blue     
confirmed, constant, dedicated, devoted, dyed-in-the-wool, faithful, loyal, orthodox, staunch, trusty, uncompromising, unwavering  

English Collins Dictionary - English synonyms & Thesaurus  

Collaborative Dictionary     English Definition
exp.
expression used to designate something that happens very rarely
exp.
state securities laws
exp.
shout (as a sign of discontentment or anger)
n.
brothers of the blue eye
exp.
(about a positive event/situation) happen out of the blue, without any effort from the impacted persons
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