expert - definition and synonyms

 
 
 
noun [countable] 

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/ˈekspɜː(r)t/
singularexpert
pluralexperts
  1. someone who has a particular skill or who knows a lot about a particular subject

    a safety/health/computer expert

    expert in/on:

    an expert in radio communications

    expert at:

    He’s an expert at getting served in a crowded bar.