The freeing of a colony etc from dependent status by granting it independence(noun)
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Use "decolonization" in a sentence
"Though decolonization is almost complete, we should not overlook the United Nations 'very respectable record in this process, particularly in making it less violent than it might have been."
"I’ve been reading Robert Meredith’s book on The Fate of Africa lately, and one striking thing about the section on decolonization from the mid-1940s to the mid-1960s was precisely the extent to which in many circumstances the imperial powers were looking for an exit strategy."
"The Chinese revolution had to await, among other things, the crisis if imperialism and the Second World War, the overall process of decolonization - in other words, the simultaneity of the anticolonial revolutions - in order to finally take control of state power."