nationalize

Short definition from Wiktionary

Verb

1. 1
   To make into, or to become, a nation.
2. 2
   To bring a private company, or an industry comprising such companies, under the control of a specific government.
3. 3
   To bring a concept such as a political issue or commercial campaign to the attention of the entire country.
4. 4
   To change from having local and regional variation to being national in character and scope.
5. 5
   To make national; to make a nation of; to endow with the character and habits of a nation, or the peculiar sentiments and attachment of citizens of a nation.