Yes, dons is a Scrabble word!

Verb

1. Put clothing on one's body

Noun

1. A Spanish gentleman or nobleman

2. Teacher at a university or college (especially at Cambridge or Oxford)

3. The head of an organized crime family

4. Celtic goddess; mother of Gwydion and Arianrhod; corresponds to Irish Danu

5. A European river in southwestern Russia; flows into the Sea of Azov

6. A Spanish courtesy title or form of address for men that is prefixed to the forename