blue

Dictionary definition · blue

blue color or pigment; resembling the color of the clear sky in the daytime"he had eyes of bright blue"
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"
used to whiten laundry or hair or give it a bluish tinge

of the color intermediate between green and violet; having a color similar to that of a clear unclouded sky"October's bright blue weather"
used to signify the Union forces in the American Civil War (who wore blue uniforms)"a ragged blue line"
filled with melancholy and despondency"gloomy at the thought of what he had to face"
characterized by profanity or cursing"foul-mouthed and blasphemous"
suggestive of sexual impropriety"a blue movie"
belonging to or characteristic of the nobility or aristocracy"an aristocratic family"

Source: Open English WordNet (CC BY 4.0).