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blue - definition and synonyms


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adjective blue pronunciation in American English /blu/
Word Forms
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  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]
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Open Dictionary


the activity of exploring abandoned buildings and other manmade structures

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