blue

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

    "he had eyes of bright blue"

    同义词： blueness

  • blue clothing

    "she was wearing blue"

  • any organization or party whose uniforms or badges are blue

    "the Union army was a vast blue"

  • the sky as viewed during daylight

    "he shot an arrow into the blue"

    同义词： blue sky blue air wild blue yonder

  • used to whiten laundry or hair or give it a bluish tinge

    同义词： bluing blueing

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

    同义词： amobarbital sodium blue angel blue devil Amytal

  • any of numerous small butterflies of the family Lycaenidae
• v. turn blue
• adj.
  • of the color intermediate between green and violet; having a color similar to that of a clear unclouded sky

    "October's bright blue weather"; "a blue flame"; "blue haze of tobacco smoke"

    同义词： bluish blueish

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

    "a ragged blue line"

  • low in spirits

    "lonely and blue in a strange city"

    同义词： depressed dispirited down(p) downcast downhearted down in the mouth low low-spirited

  • characterized by profanity or cursing

    "blue language"

    同义词： blasphemous profane

  • suggestive of sexual impropriety

    "a blue movie"; "blue jokes"

    同义词： gamy gamey juicy naughty racy risque spicy

  • belonging to or characteristic of the nobility or aristocracy

    "a blue family"; "blue blood"; "the blue-blooded aristocracy"

    同义词： aristocratic aristocratical blue-blooded gentle patrician

  • morally rigorous and strict

    "blue laws"

    同义词： puritan puritanic puritanical

  • causing dejection

    "a blue day"

    同义词： dark depressing dingy disconsolate dismal dispiriting gloomy grim sorry drab drear dreary

以上来源于: WordNet