Try Our Apps


Avoid these words. Seriously.


[brahyt-nis] /ˈbraɪt nɪs/
the quality of being bright.
Optics. the luminance of a body, apart from its hue or saturation, that an observer uses to determine the comparative luminance of another body. Pure white has the maximum brightness, and pure black the minimum brightness.
Origin of brightness
before 950; Middle English brihtnes, Old English beorhtnes. See bright, -ness Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
Cite This Source
Examples from the Web for brightness
Contemporary Examples
Historical Examples
  • Do you observe this red glow,—dusky, too, amid all the brightness?

    Other Tales and Sketches Nathaniel Hawthorne
  • This flash of gold is the only brightness in the place, otherwise dull and monotonous.

    The Roof of France Matilda Betham-Edwards
  • It seemed to them as if the brightness of the moon had been increased, and was as resplendent as that of the sun.

    The Dream Emile Zola
  • But there is a light, above the brightness of the sun, shining round about her.

    Slavery Ordained of God Rev. Fred A. Ross, D.D.
  • The only brightness was that of the red velvet of the benches and the gallery hand-rests.

British Dictionary definitions for brightness


the condition of being bright
(physics) a former name for luminosity (sense 4)
(psychol) the experienced intensity of light
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for brightness

Old English beorhtnes "brightness, clearness, splendor, beauty;" see bright + -ness.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source

Word of the Day

Nearby words for brightness

Word Value for brightness

Scrabble Words With Friends