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blue

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noun blue pronunciation in American English /blu/ 
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singularblue
pluralblues
  1. 1
    [countable/uncountable] the color of the sky on a clear sunny day

    The boy was dressed all in blue.

    The room had been painted in bright blues and yellows.

    Synonyms and related words for this sense of blue
  2. 2

    blue

    or

    Blue

    [countable] a person who has played for Oxford University or Cambridge University in a sport

    He was a cricket Blue at Oxford.

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