American English

Definition of zero in on phrasal verb from the Oxford Advanced American Dictionary

 

zero in on

 phrasal verb
phrasal verb
 
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Phrasal Verbs

    zero in on somebody/something

     
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  1. 1to fix all your attention on the person or thing mentioned They zeroed in on the key issues.
  2. 2to aim guns, etc. at the person or thing mentioned
See the Oxford Advanced Learner's Dictionary entry: zero in on