American English

Definition of hollow out phrasal verb from the Oxford Advanced American Dictionary

 

hollow out

 phrasal verb
phrasal verb
 
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Phrasal Verbs

    hollow somethingout

     
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  1. 1to make a hole in something by removing part of it Hollow out the cake and fill it with cream. a gun concealed in a hollowed-out book
  2. 2to form something by making a hole in something else The cave has been hollowed out of the mountainside.
See the Oxford Advanced Learner's Dictionary entry: hollow out