imperialism

1. The policy of forcefully extending a nation's authority by territorial gain or by the establishment of economic and political dominance over other nations. (countable, uncountable)
2. The means of forming, maintaining, or expanding an empire. (countable, uncountable)
3. Any undue extension of political, intellectual, or other forms of authority, particularly in regards to systems that benefit the Western world at the cost of the Global South. (countable, figuratively, uncountable)

Plural imperialisms