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Blue definition

Blue is an adjective meaning "of the color intermediate between green and violet; having a color similar to that of a clear unclouded sky." It has 16 meanings, as an adjective, a noun and a verb, listed below with example sentences.

Part of speech
adjective, noun, verb
Syllables
1
Letters
4
How common
Everyday word

Blue as an adjective

  1. of the color intermediate between green and violet; having a color similar to that of a clear unclouded sky

    "October's bright blue weather"

    Same sense: bluish, blueish

  2. used to signify the Union forces in the American Civil War (who wore blue uniforms)

    "a ragged blue line"

  3. filled with melancholy and despondency

    "lonely and blue in a strange city"

    Same sense: down, low, down in the mouth, depressed, grim, low-spirited, gloomy, downcast

  4. characterized by profanity or cursing

    "blue language"

    Same sense: profane, blasphemous

  5. suggestive of sexual impropriety

    "a blue movie"

    Same sense: naughty, spicy, juicy, racy, risque, gamey, gamy

  6. belonging to or characteristic of the nobility or aristocracy

    "a blue family"

    Same sense: gentle, blue-blooded, aristocratic, patrician, aristocratical

  7. morally rigorous and strict

    "blue laws"

    Same sense: puritanical, puritanic

  8. causing dejection

    "a blue day"

    Same sense: sorry, dark, grim, gloomy, dismal, dreary, drab, dingy

Blue as a noun

  1. blue color or pigment; resembling the color of the clear sky in the daytime

    "he had eyes of bright blue"

    Same sense: blueness

  2. blue clothing

    "she was wearing blue"

  3. any organization or party whose uniforms or badges are blue

    "the Union army was a vast blue"

  4. the sky as viewed during daylight

    "he shot an arrow into the blue"

    Same sense: blue air, blue sky, wild blue yonder

  5. used to whiten laundry or hair or give it a bluish tinge

    Same sense: bluing, blueing

  6. the sodium salt of amobarbital that is used as a barbiturate; used as a sedative and a hypnotic

    Same sense: blue angel, blue devil, amobarbital sodium

  7. any of numerous small butterflies of the family Lycaenidae

Blue as a verb

  1. turn blue

Synonyms and antonyms

How to say blue

Blue has 1 syllable and rhymes with to. Syllable counts and rhymes come from the CMU Pronouncing Dictionary.

Words that rhyme with blue

BLUE in word games

Scrabble
6
Words With Friends
9
Anagrams
1

Is BLUE a valid Scrabble word? Yes, it is in the ENABLE list most word games use. Check BLUE in the word checker, or unscramble BLUE to see its 1 anagram and the shorter words in its letters.

Definitions and examples from Open English WordNet (CC BY 4.0). Browse more words in the dictionary.