Definitions
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noun (wikipedia, Blue, Blue (colour))
  1. (colorbox, blue) 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. (context, snooker) One of the colour balls used in snooker with a value of 5 points.
verb (blues, blueing or bluing, blued)
  1. (transitive) To make .
  2. (transitive) (context, Metallurgy) To treat the surface of steel so that it is passivated chemically and becomes more resistant to rust.
See Wikipedia article on bluing steel: (w, bluing (steel))
  1. (intransitive) To turn .
adjective (blu, er)
  1. Of the colour blue.
  2. (colloquial)(nautical) depressed, Depressed, melancholic, sad. The phrase "feeling blue" was coined from a custom among old deepwater ships to fly blue flags or have a blue band painted along the hull if the vessel lost a captain or officers during a voyage.
  3. (colloquial)(context, entertainment) pornographic, Pornographic.
  4. (US, politics) Of states or other political entities, tending to vote for the Democratic Party.
Many of the traditionally states are on the east and west coasts.
Congress turned in the mid-term elections.
  1. (rfv-sense) (US, politics) Of or pertaining to the Democratic Party.
a advertisement
  1. (astronomy) of the higher-frequency region of the part of the electromagnetic spectrum which is relevant in the specific observation.

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