|1.||the policy or practice of extending a state's rule over other territories|
|2.||an instance or policy of aggressive behaviour by one state against another|
|3.||the extension or attempted extension of authority, influence, power, etc, by any person, country, institution, etc: cultural imperialism|
|4.||a system of imperial government or rule by an emperor|
|5.||the spirit, character, authority, etc, of an empire|
|6.||advocacy of or support for any form of imperialism|
"It is the old story of 1798, when French republicanism sick of its own folly and misdeeds, became metamorphosed into imperialism, and consoled itself for its incapacity to found domestic freedom by putting an iron yoke upon Europe, and covering it with blood and battle-fields." [Francis Lloyd, "St. James's Magazine," January 1842]
Acquisition by a government of other governments or territories, or of economic or cultural power over other nations or territories, often by force. Colonialism is a form of imperialism.