Definitions of blue

  1. To make blue; to dye of a blue color; to make blue by heating, as metals, etc.
  2. To make, or dye, blue.
  3. To make blue.
  4. To make blue; to temper iron. The blues, lowness of spirits. True blue, genuine and thorough.
  5. Having the color of the clear sky, or a hue resembling it, whether lighter or darker; as, the deep, blue sea; as blue as a sapphire; blue violets.
  6. Low in spirits; melancholy; as, to feel blue.
  7. Suited to produce low spirits; gloomy in prospect; as, thongs looked blue.
  8. Severe or over strict in morals; gloom; as, blue and sour religionists; suiting one who is over strict in morals; inculcating an impracticable, severe, or gloomy mortality; as, blue laws.
  9. Pale, without redness or glare, - said of a flame; hence, of the color of burning brimstone, betokening the presence of ghosts or devils; as, the candle burns blue; the air was blue with oaths.
  10. Literary; - applied to women; - an abbreviation of bluestocking.
  11. Low spirits; a fit of despondency; melancholy.
  12. any of numerous small chiefly blue butterflies of the family Lycaenidae
  13. blue clothing; " she was wearing blue"
  14. the color of the clear sky in the daytime; " he had eyes of bright blue"
  15. any organization or party whose uniforms or badges are blue; " the Union army was a vast blue"
  16. the sky as viewed during daylight; " he shot an arrow into the blue"
  17. One of the seven colors into which the rays of light divide themselves, when refracted through a glass prism; the color of the clear sky, or a color resembling that, whether lighter or darker; a pigment having such color. Sometimes, poetically, the sky.
  18. Color of the clear sky; one of the three original or primary colors ( blue, yellow, and red) from which the others are made; a dye or paint which colors blue.
  19. The color of the sky when uncluded: one of the seven primary colors.
  21. One of the prismatic colors.
  22. The color of the clear sky; azure; also, a dye or pigment of this color.
  23. A primary colour of various shades; the azure sky.
  24. One of the primary colours; azure.
  25. used to signify the Union forces in the Civil War ( who wore blue uniforms); " a ragged blue line"
  26. Of the color blue.
  27. Of a blue color.
  28. Having the color of the clear sky.
  29. Of a blue colour; sky- coloured; cast down or low in spirits; obscene.
  30. Resembling blue; dejected.