Definitions of Don:

• noun:   a European river in southwestern Russia; flows into the Sea of Azov
• noun:   Celtic goddess; mother of Gwydion and Arianrhod; corresponds to Irish Danu
• noun:   a Spanish title of respect for a gentleman or nobleman
• noun:   the head of an organized crime family
• noun:   teacher at a university of college (especially at Cambridge or Oxford)
• verb:   put clothing on one's body

  Example: "The princess donned a long blue dress"

• name:  A male given name (common: 1 in 689 males; popularity rank in the U.S.: #135)
• name:  A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #12650)