Blue Definition

blo͝o
blued, blueing, blues, bluest, bluing, bluer
noun
blues
The color of the clear sky or the deep sea; any color between green and violet in the spectrum.
Webster's New World
Any blue pigment or dye.
Webster's New World
Bluing.
Webster's New World
An object having this hue.
American Heritage
Anything colored blue, as the third circle of an archer's target.
Webster's New World
Synonyms:
adjective
bluest, bluer
Having the color of the clear sky or the deep sea.
Webster's New World
Having a bluish cast or tinge.
Webster's New World
Having a grayish cast or tinge.
A blue cat.
Webster's New World
Having a gray or purplish color, as from cold or contusion.
American Heritage
Livid.
Webster's New World
verb
blued, blueing, blues, bluing
To make or become blue.
American Heritage
To make or become blue.
Webster's New World

(metallurgy) To treat the surface of steel so that it is passivated chemically and becomes more resistant to rust.

Wiktionary

(slang) To spend (money) extravagantly; to blow.

Wiktionary
pronoun

A surname​. An anglicization of German Blau.

Wiktionary
(rare) A female given name, typically used in conjoined names like Bonnie Blue or Blue Bell.
Wiktionary

A male nickname, occasionally used as a formal given name.

Wiktionary

A present or former letterman at Oxford or Cambridge.

Wiktionary
idiom
blue in the face
  • At the point of extreme exasperation:

    I argued with them until I was blue in the face.

American Heritage
into the blue
  • At a far distance; into the unknown:

    spontaneously take a trip into the blue.

American Heritage
out of the blue
  • From an unexpected or unforeseen source:

    criticism that came out of the blue.

  • At a completely unexpected time:

    a long-unseen friend who appeared out of the blue.

American Heritage
out of the blue
  • as if from the sky; without being expected or foreseen
Webster's New World
the blue
  • the sky
  • the sea
Webster's New World

Other Word Forms of Blue

Noun

Singular:
blue
Plural:
blues

Adjective

Base Form:
blue
Comparative:
bluer
Superlative:
bluest

Idioms, Phrasal Verbs Related to Blue

Origin of Blue

  • From Middle English blewe, partially from Old English *blǣw ("blue"; found in derivative blǣwen (“bluish”)); and partially from Anglo-Norman blew, blef (“blue”), from Medieval Latin blāvus, blāvius (“blue”), from Old Frankish *blāw, *blāo (“blue”); both from Proto-Germanic *blēwaz (“blue, dark blue”), from Proto-Indo-European *bʰlēw- (“yellow, blond, grey”). Cognate with English dialectal blow (“blue”), Scots blue, blew (“blue”), North Frisian bla, blö (“blue”), Saterland Frisian blau (“blue”), Dutch blauw (“blue”), German blau (“blue”), Swedish blå (“blue”), Icelandic blár (“blue”), Latin flāvus (“yellow”), Middle Irish blá (“yellow”), Lithuanian blãvas (“blue”). Doublet of blae.

    From Wiktionary

  • Middle English blue, bleu from Old French bleu of Germanic origin bhel-1 in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

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