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

 

roost

 noun
noun
BrE BrE//ruːst//
 
; NAmE NAmE//ruːst//
 
Animal homes
 
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  • a place where birds sleep See related entries: Animal homes
  • Word Origin Old English hrōst, related to Dutch roest; of unknown ultimate origin.Idioms (informal) to be the most powerful member of a group Liverpool ruled the roost in English football for a decade.
    See the Oxford Advanced American Dictionary entry: roost