blu

Noun

blue (countable and uncountable, plural blues)

1. The colour of the clear sky or the deep sea; the colour midway between green and violet in the visible spectrum and one of the primary additive colours.
   • Lady Penrhyn was quite handsome enough to have spared one ingredient in her cup of fascination, but, unfortunately, having been married in her teens, she expected to live in them, and, never being reminded by the trials to which her sex is subject, of the flight of years, and the inroads of...1838 (date written), L[etitia] E[lizabeth] L[andon], chapter XVI, in Lady Anne Granard; or, Keeping up Appearances. […], volume I, London: Henry Colburn, […], published 1842, →OCLC, page 204
2. Anything coloured blue, especially to distinguish it from similar objects differing only in colour.
   • I don't like red Smarties. Have you got a blue?
3. A blue dye or pigment.
4. (uncountable) Blue clothing.
   • The boys in blue marched to the pipers.
   1. (in plural) A blue uniform. See blues.
   2. A member of a sports team that wears blue colours; (in the plural) a nickname for the team as a whole. See also blues.
      • Come on, you blues!

See all 52 meanings of blue