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  1. Dictionary
    blue
    [blo͞o]
    adjective
    blue (adjective) · bluer (comparative adjective) · bluest (superlative adjective)
    1. of a color intermediate between green and violet, as of the sky or sea on a sunny day:
      "the clear blue sky" · "a blue silk shirt" · "deep blue eyes"
      • (of a person's skin) having turned blue as a result of cold or breathing difficulties:
        "Annie went blue, and I panicked"
      • (of a bird or other animal) having blue markings:
        "a blue jay"
      • (of cats, foxes, or rabbits) having fur of a smoky gray color:
        "the blue fox"
      • (of a ski run) of the second lowest level of difficulty, as indicated by colored markers positioned along it.
      • physics
        denoting one of three colors of quark.
    2. informal
      (of a person or mood) melancholy, sad, or depressed:
      "he's feeling blue"
      Opposite:
      happy
      cheerful
    3. informal
      (of a movie, joke, or story) with sexual or pornographic content:
      "the blue movies are hugely profitable"
      Opposite:
      clean
      family
      • (of language) marked by cursing, swearing, and blasphemy.
    4. informal
      dated
      rigidly religious or moralistic; puritanical.
    noun
    blue (noun) · blues (plural noun) · Blue (noun) · the blue (noun)
    1. blue color or pigment:
      "she was dressed in blue" · "the dark blue of his eyes" · "armchairs in pastel blues and greens"
      • blue clothes or material:
        "Susan wore blue"
      • (Blue)
        the Union army in the Civil War, or a member of that army.
      • another term for bluing
      • a blue ball, piece, etc., in a game or sport.
      • literary
        (the blue)
        the sky or sea, or the unknown:
        "a lark went trilling up, up into the blue"
    2. a small butterfly, the male of which is predominantly blue while the female is typically brown.
    verb
    blue (verb) · blues (third person present) · blued (past tense) · blued (past participle) · blueing (present participle) · bluing (present participle)
    1. make or become blue:
      "the light dims, bluing the retina" · "blued paper" · "the day would haze, the air bluing with afternoon"
      • heat (metal) so as to give it a grayish-blue finish:
        "nickel-plated or blued hooks"
    2. historical
      wash (white clothes) with bluing:
      "they blued the shirts and starched the uniforms"
    Origin
    Middle English: from Old French bleu, ultimately of Germanic origin and related to Old English blǣwen ‘blue’ and Old Norse blár ‘dark blue’.
    Translate blue to
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  2. Thesaurus
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    57 Synonyms & Antonyms for BLUE - Thesaurus.com

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  3. Merriam Webster
    https://www.merriam-webster.com › thesaurus › blue

    BLUE Synonyms: 385 Similar and Opposite Words - Merriam …

  4. Power Thesaurus
    https://www.powerthesaurus.org › blue

    BLUE in Thesaurus: 1000+ Synonyms & Antonyms for BLUE

  5. Cambridge Dictionary
    https://dictionary.cambridge.org › thesaurus › blue

    BLUE - 65 Synonyms and Antonyms - Cambridge English

  6. Power Thesaurus
    https://www.powerthesaurus.org › blue › synonyms

    Blue synonyms - 2 084 Words and Phrases for Blue - Power …

  7. WordHippo
    https://www.wordhippo.com › what-is › another-word-for › blue.html

    What is another word for blue - WordHippo

  8. Collins Dictionary
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    Synonyms of BLUE | Collins American English Thesaurus

  9. Free Thesaurus
    https://www.freethesaurus.com › blue

    Blue synonyms, blue antonyms - FreeThesaurus.com

  10. OneLook Dictionary Search
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    blue: OneLook Thesaurus and Reverse Dictionary

  11. WordReference
    https://www.wordreference.com › synonyms › blue

    blue - WordReference.com English Thesaurus