DuckCorp Dico

Found one definition

1.                 From German - English Ding/FreeDict dictionary ver. 1.9-fd1:
                   
   
   
                   
                     
   Winkern /vˈɪnkɜn/ <neut, n, sg>
   semaphore flag signalling <n>, semaphore <n>
      Synonyms: Winkerverfahren, Winken
    see: Winkeralphabet, Winkspruch