imperialism Meaning, Definition & Usage

  1. noun a policy of extending your rule over foreign countries
  2. noun a political orientation that advocates imperial interests
  3. noun any instance of aggressive extension of authority

WordNet


Im*pe"ri*al*ism noun
Definitions
  1. The power or character of an emperor; imperial authority; the spirit of empire.
    Roman imperialism had divided the world. C. H. Pearson.

Webster 1913