usurpation vs actus reus

usurpation and actus reus both are nouns.

Word	Noun	Adjective	Verb	Adverb
usurpation	Yes	No	No	No
actus reus	Yes	No	No	No

As nouns, actus reus is a hypernym of usurpation; that is, actus reus is a word with a broader meaning than usurpation:

Other hypernyms of usurpation include misconduct, wrongdoing, wrongful conduct.

usurpation (noun)	actus reus (noun)
wrongfully seizing and holding (an office or powers) by force (especially the seizure of a throne or supreme authority)	activity that transgresses moral or civil law
entry to another's property without right or permission