Source : Webster's Revised Unabridged Dictionary (1913)

Raze \Raze\, v. t. [imp. & p. p. {Razed}; p. pr. & vb. n.
   {Razing}.] [F. raser. See {Rase}, v. t.] [Written also
   {rase}.]
   1. To erase; to efface; to obliterate.

            Razing the characters of your renown. --Shak.

   2. To subvert from the foundation; to lay level with the
      ground; to destroy; to demolish.

            The royal hand that razed unhappy Troy. --Dryden.

   Syn: To demolish; level; prostrate; overthrow; subvert;
        destroy; ruin. See {Demolish}.

Source : WordNet®

razing
     n 1: the event of a structure being completely demolished and
          leveled [syn: {wrecking}]
     2: complete destruction of a building [syn: {leveling}, {tearing
        down}, {demolishing}]