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

 

roost

 verb
verb
BrE BrE//ruːst//
 
; NAmE NAmE//ruːst//
 
Verb Forms present simple I / you / we / they roost
BrE BrE//ruːst//
 
; NAmE NAmE//ruːst//
 
he / she / it roosts
BrE BrE//ruːsts//
 
; NAmE NAmE//ruːsts//
 
past simple roosted
BrE BrE//ˈruːstɪd//
 
; NAmE NAmE//ˈruːstɪd//
 
past participle roosted
BrE BrE//ˈruːstɪd//
 
; NAmE NAmE//ˈruːstɪd//
 
-ing form roosting
BrE BrE//ˈruːstɪŋ//
 
; NAmE NAmE//ˈruːstɪŋ//
 
 
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  • [intransitive] (of birds) to rest or go to sleep somewhere
  • Word Origin Old English hrōst, related to Dutch roest; of unknown ultimate origin.Idioms
    something comes home to roost(also the chickens come home to roost)
     
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    used to say that if somebody says or does something bad or wrong, it will affect them badly in the future
    See the Oxford Advanced American Dictionary entry: roost