Definition of "blue" [blue]

  • (noun) The hue of that portion of the visible spectrum lying between green and indigo, evoked in the human observer by radiant energy with wavelengths of approximately 420 to 490 nanometers; any of a group of colors that may vary in lightness and saturation, whose hue is that of a clear daytime sky; one of the additive or light primaries; one of the psychological primary hues.
  • (noun) A pigment or dye imparting this hue.
  • (noun) Bluing.
  • (noun) An object having this hue.
  • (noun) Dress or clothing of this hue: The ushers wore blue.
  • (noun) 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
  • (noun) a dye or pigment of any of these colours
  • (noun) blue cloth or clothing
  • (noun) a sportsperson 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)
  • (noun) the honour of so representing one's university
  • (noun) any of numerous small blue-winged butterflies of the genera Lampides, Polyommatus, etc: family Lycaenidae
  • (noun) a policeman
  • (noun) a blue ring on a target, between the red and the black, scoring five points
  • (noun) a blue ball in snooker, etc
  • (noun) an argument or fight
  • (noun) a court summons, esp for a traffic offence
  • (noun) a mistake; error
  • (adjective) of the colour blue
  • (adjective) (of the flesh) having a purple tinge, as from cold or contusion
  • (adjective) depressed, moody, or unhappy
  • (adjective) dismal or depressing
  • (adjective) indecent, titillating, or pornographic
  • (adjective) bluish in colour or having parts or marks that are bluish
  • (adjective) aristocratic; noble; patrician
  • (adjective) relating to, supporting, or representing the Democratic Party
  • (verb) to make, dye, or become blue
  • (verb) to treat (laundry) with blueing
  • (verb) to spend extravagantly or wastefully; squander

Use "blue" in a sentence

  • "Light blue is more specific than ˜blue™ which is more specific than ˜colored.™"
  • "The blue stains, the lines for corrections, etc., are erased with the the potassic oxalate (_blue salving, _ as it is termed) whose formula has been given."
  • "It is scarcely more previous than the underlying limestones, and why a solution that could penetrate and leach ores from it should be stopped at the upper surface of the blue limestone is not obvious; nor why the plane of junction between the porphyry and the _blue limestone_ should be the special place of deposit of the ore."

Words like "blue"