American English

Definition of worry at phrasal verb from the Oxford Advanced American Dictionary

 

worry at

 phrasal verb
phrasal verb
 
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Phrasal Verbs

    worry at something

     
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  1. 1 to think about a problem a lot and try and find a solution
  2. 2to bite something and shake or pull it Rebecca worried at her lip. He began to worry at the knot in the cord.
See the Oxford Advanced Learner's Dictionary entry: worry at