noun (n)

• the action of forming or becoming a nation(noun.act)

  Synonym:
  nationalisation
  

  source: wordnet30
• the action of rendering national in character(noun.act)

  source: wordnet30
• changing something from private to state ownership or control(noun.act)

  Synonym:
  communisation, communization, nationalisation
  Antonym:
  denationalisation, denationalization, privatisation, privatization
  

  source: wordnet30
• The act of nationalizing, or the state of being nationalized.(noun)

  source: webster1913