brightness


brightness (http://definr.com/brightness)

     n 1: the location of a visual perception along the black-to-white
          continuum [ant: dullness]
     2: intelligence as manifested in being quick and witty [syn: cleverness,
         smartness]
     3: the quality of being luminous; emitting or reflecting light;
        "its luminosity is measured relative to that of our sun"
        [syn: luminosity, brightness level, luminance, luminousness,
         light]