Source : Webster's Revised Unabridged Dictionary (1913)

Renewal \Re*new"al\ (-al), n.
   The act of renewing, or the state of being renewed; as, the
   renewal of a treaty.

Source : WordNet®

renewal
     n 1: the conversion of wasteland into land suitable for use of
          habitation or cultivation [syn: {reclamation}, {rehabilitation}]
     2: the act of renewing
     3: filling again by supplying what has been used up [syn: {refilling},
         {replenishment}, {replacement}]