roost
noun [ C ] uk/ruːst/ us/ruːst/
（鸟的）栖身处，栖木
a place, such as a branch of a tree, where birds rest or sleep
roost
verb [ I ] uk/ruːst/ us/ruːst/
（鸟）栖息
When birds roost, they go somewhere to rest or sleep.
Idiom
come back/home to roostidiom 回报到自己身上，得到恶报
to return to cause problems
All his earlier mistakes are coming home to roost. 他早些时候犯的那些错误现在都报应到他自己身上了。