adjective.of the color whose hue is that of the clear sky: of the color blue

• a blue jacket
• her bright blue eyes

adjective.bluish

• The house is blue with white shutters.
• the blue haze of tobacco smoke

adjective.discolored by or as if by bruising

• blue with cold
• a blue cat

noun.a color whose hue is that of the clear sky or that of the portion of the color spectrum lying between green and violet

• Blue is his favorite color.
• shades of blue

noun.a pigment or dye that colors blue

• adding blue to the laundry
• will be wearing blue

noun.bluing

• wearing their dress blues
• the Blue versus the Gray

verb.to make (something) blue in color: such as

• Last, the generation of the grandmothers, in immaculately blued hair …
• Tattoos blued his upper arms.

verb.to dye, tint, or paint (something) blue

• the blued barrel of the gun
• Between banks shrouded with snow, the river gleamed darkly, like blued steel with gold chips of sunlight dancing on each riffle.

verb.to heat (iron or steel) to about 550 to 600°F (288 to 316°C) so that it acquires a bluish protective coating

• their blueing fingers