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90% of the time, speakers of English use just 7,500 words in speech and writing.These words appear in red, and are graded with stars. One-star words are frequent, two-star words are morefrequent, and three-star words are the most frequent.

adjective American English pronunciation: blue /blu/ 
Word Forms
  1. 1
    something that is blue is the same color as the sky on a clear sunny day. If something is similar to this color, you can say that it is a bluish color

    He looked at her with his pale blue eyes.

    The sky was gloriously blue.

    blue with cold:

    My fingers were turning blue with cold.

  2. 2
    informal feeling slightly sad

    She usually calls her mother when she's feeling blue.

  3. 3
    informal old-fashioned dealing with sex in a way that some people find offensive
    See also  blue movie


derived word


noun [uncountable]

This is the American English definition of blue. View British English definition of blue.