u·surp /juːˈzɜːp $ -ˈsɜːrp/ verb [transitiveT] formalREPLACE to take someone else’s power, position, job etc when you do not have the right to 篡夺,夺取〔权力、地位、工作等〕 There were a couple of attempts to usurp the young king. 屡次有人企图篡夺那位年轻国王的王位。
—usurper noun [countableC]
—usurpation /ˌjuːzɜːˈpeɪʃən $ -sɜːr-/ noun [uncountableU]