American English

Definition of prop up phrasal verb from the Oxford Advanced American Dictionary

 

prop up

 phrasal verb
phrasal verb
 
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Phrasal Verbs

    prop somethingup

     
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  1. 1to prevent something from falling by putting something under it to support it synonym shore up They had to prop up the tree with long poles under the branches.
  2. 2(often disapproving) to help something that is having difficulties The government was accused of propping up declining industries.
See the Oxford Advanced Learner's Dictionary entry: prop up