See Also: blue 1, adjective(dictionary)
BLUE CROSS BLUE SHIELD(finance)
BLUE CROSS AND BLUE SHIELD OF ME(finance)
Blue Law(law)
blue-eye(medicine)
Big Blue(money)
sky-blue(dictionary)
Blue Air(tourism)
blue(2)(dictionary)
sky blue(medicine)

blue 1, adjective (oh)



[Date: 1200-1300; Language: Old French; Origin: blou]
having the colour of the sky or the sea on a fine day
-see also navy navy, navy blue navy blue
::the blue waters of the lake
dark/light/pale/bright blue
::a dark blue raincoat
[not before noun] informal sad and without hope
-synonym depressed depressed
::I've been feeling kind of blue .
informal blue jokes, stories etc are about sex, in a way that might offend some people
-see also blue movie
argue/talk etc till you're blue in the face
informal to argue, talk etc about something a lot, but without achieving what you want
::You can tell them till you're blue in the face, but they'll still do what they want.
blue with cold
especially BrE someone who is blue with cold looks extremely cold
go blue
BrE if someone goes blue, their skin becomes blue because they are cold or cannot breathe properly
talk a blue streak
AmE informal to talk very quickly without stopping
-- blueness n [U]
-see also black and blue , once in a blue moon at once 1 (15), scream blue murder at scream 1 (1)