present participle of blue

A surname from German. An anglicization of German Blau. / (rare) A female given name from English, typically used in conjoined names like Bonnie Blue or Blue Bell.

A letterman at Oxford or Cambridge. / (historical) A member of the Royal Horse Guards (which merged with the 1st Dragoons in 1969) / Synonym of British Blue (“a breed of cat”)

plural of blueing

(idiomatic, informal) To be depressed; to have low morale; to feel sad.

plural of royal blue

(chiefly UK, informal, law enforcement) The flashing blue lights and (originally) two-tone siren of a police vehicle.

(music) A form of blues originating in the Mississippi Delta region of the United States, generally featuring minimal instrumentation and song structure.

(music) A minor hexatonic scale originating in the American musical genre blues, consisting of tonic, minor third, fourth, diminished fifth, fifth, and minor seventh, in which notes, particularly the minor third, fourth, diminished fifth, and minor seventh may be bent. It can also be called the minor blues scale when distinguishing it from its only other functional mode the major blues scale.

(informal) Blue eyes.