noun (n)

• the conversion of wasteland into land suitable for use of habitation or cultivation(noun.act)

  Synonym:
  reclamation, rehabilitation
  

  source: wordnet30
• the act of renewing(noun.act)

  source: wordnet30
• filling again by supplying what has been used up(noun.process)

  Synonym:
  refilling, replacement, replenishment
  

  source: wordnet30
• The act of renewing, or the state of being renewed; as, the renewal of a treaty.(noun)

  source: webster1913