nationalise /ˈnæʃənəlaɪz/ verb5 •To bring a private company, or an industry comprising such companies, under the control of a specific government.The government plans to nationalize the energy industry. •To bring a concept such as a political issue or commercial campaign to the attention of the entire country. •To change from having local and regional variation to being national in character and scope. •(rare) To make into, or to become, a nation.Probably no Hindu who could make intelligent use of political freedom ever dreams of the present possibility of a nationalized India, […] — 1910 •(no longer used) 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. formsnationalised · nationalising · nationalises