Source : Webster's Revised Unabridged Dictionary (1913)

Uprising \Up*ris"ing\, n.
   1. Act of rising; also, a steep place; an ascent. ``The steep
      uprising of the hill.'' --Shak.

   2. An insurrection; a popular revolt. --J. P. Peters.

Source : WordNet®

uprising
     n : organized opposition to authority; a conflict in which one
         faction tries to wrest control from another [syn: {rebellion},
          {insurrection}, {revolt}, {rising}]