say it: yoo-sur-PAY-shuhn
usurpation is a noun meaning "entry to another's property without right or permission". It carries 2 recorded senses.
entry to another's property without right or permission
wrongfully seizing and holding (an office or powers) by force (especially the seizure of a throne or supreme authority)
“a succession of generals who ruled by usurpation”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for usurpation come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.