Definition of nerd noun from the Oxford Advanced Learner's Dictionary

     

    nerd

     noun
    noun
    BrE BrE//nɜːd//
     
    ; NAmE NAmE//nɜːrd//
     
    (informal, disapproving)
     
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  1. 1a person who is boring, stupid and not fashionable I feel like a nerd in these shoes.
  2. 2a person who is very interested in computers synonym geek
  3. Word Origin 1950s (originally US): of unknown origin.
See the Oxford Advanced American Dictionary entry: nerd