part of speech: noun

definition: the color of a clear sky; the color between green and violet on the color spectrum.

synonyms: azure

phrase: the blue

phrase: out of the blue


part of speech: adjective

inflections: bluer, bluest

definition 1: having the color blue.

  • The police officer wore a blue uniform.

synonyms: azure

definition 2: sad; unhappy.

  • He was blue about losing his pet.

synonyms: down, downcast, melancholy, sad

phrase: blue in the face

derivations: bluish (blueish) (adj.), bluely (adv.), blueness (n.)