DuckCorp Dico

Found one definition

1.                 From English-日本語 (にほんご) FreeDict+WikDict dictionary ver. 2022.11.18:
                   
   
   
                   
                     
   geek //ɡiːk// <n>
   1. オタク, ギーク
   expert in a technical field, particularly to do with computers
   2. マニア
   person intensely interested in a particular field or hobby