Topic: COLOURS
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blue2
1 [uncountable and countable]CC the colour of the sky or the sea on a fine day : 
She nearly always dresses in blue.the rich greens and blues of the tapestry
She nearly always dresses in blue.the rich greens and blues of the tapestry2 a slow sad style of music that came from the southern US : a blues singer ➔ rhythm and blues
blues
[uncountable] also the bluesAPMa blues singer4 if something happens out of the blue, it is very unexpected
out of the blue
informal➔ a bolt from/out of the blue
at bolt1 (3)5 [countable] someone who has represented Oxford or Cambridge University at a sport, or the title given to such a person
