English

Definition of oust verb from the Oxford Advanced Learner's Dictionary

 

oust

 verb
verb
BrE BrE//aʊst//
 
; NAmE NAmE//aʊst//
 
Verb Forms present simple I / you / we / they oust
BrE BrE//aʊst//
 
; NAmE NAmE//aʊst//
 
he / she / it ousts
BrE BrE//aʊsts//
 
; NAmE NAmE//aʊsts//
 
past simple ousted
BrE BrE//ˈaʊstɪd//
 
; NAmE NAmE//ˈaʊstɪd//
 
past participle ousted
BrE BrE//ˈaʊstɪd//
 
; NAmE NAmE//ˈaʊstɪd//
 
-ing form ousting
BrE BrE//ˈaʊstɪŋ//
 
; NAmE NAmE//ˈaʊstɪŋ//
 
 
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to force somebody out of a job or position of power, especially in order to take their place oust somebody (as something) He was ousted as chairman. oust somebody (from something) The rebels finally managed to oust the government from power. She is a strong supporter of the recently ousted president. Word Origin late Middle English (as a legal term): from Anglo-Norman French ouster ‘take away’, from Latin obstare ‘oppose, hinder’.
See the Oxford Advanced American Dictionary entry: oust