nationalization
noun /ˌnæʃnəlaɪˈzeɪʃn/
  /ˌnæʃnələˈzeɪʃn/
(British English also nationalisation)
 [uncountable, countable]- the process of putting an industry or a company under the control of the government, which becomes its owner opposite denationalizationdenationalisation, privatizationprivatisation