Dak.

Proper noun

Dakota (countable and uncountable, plural Dakotas)

1. The Santee branch of the Sioux people.
2. The language of these people.
3. Either of the two states North Dakota or South Dakota.
4. (historical) The Dakota Territory; an organized incorporated territory of the United States that existed from March 2, 1861, until November 2, 1889, when the final extent of the reduced territory was split and admitted to the Union as the states of North Dakota and South Dakota.
5. A unisex given name transferred from the place name.
   • 'Montana?' I said. 'You can't call a kid Montana'―these friends of mine were going to call their new baby girl Montana and I tried to talk them out of it, because I'm sick of Australians naming their kids after American placenames, I'm sick of all these Montanas and Delawares and Indianas and...2002, Danny Katz, Dork Geek Jew, Allen & Unwin, published 2002, →ISBN, page 12

See all 8 meanings of Dakota