Source : Webster's Revised Unabridged Dictionary (1913)

Breadth \Breadth\, n. [OE. brede, breede, whence later bredette,
   AS. br?du, fr. br[=a]d broad. See {Broad}, a.]
   1. Distance from side to side of any surface or thing;
      measure across, or at right angles to the length; width.

   2. (Fine Arts) The quality of having the colors and shadows
      broad and massive, and the arrangement of objects such as
      to avoid to great multiplicity of details, producing an
      impression of largeness and simple grandeur; -- called
      also {breadth of effect}.

            Breadth of coloring is a prominent character in the
            painting of all great masters.        --Weale.

Source : WordNet®

breadth
     n 1: an ability to understand a broad range of topics; "a teacher
          must have a breadth of knowledge of the subject" [syn: {comprehensiveness}]
     2: the extent of something from side to side [syn: {width}]