don in WordNet English dictionary

1. put clothing on one's body
   "What should I wear today?"; "He put on his best suit for the wedding"; "The princess donned a long blue dress"; "The queen assumed the stately robes"; "He got into his jeans"
   wear  put on  get into  don  assume 
   

1. teacher at a university or college (especially at Cambridge or Oxford)
   preceptor  don 
   
2. the head of an organized crime family
   don  father