Rus

Short definition from Wiktionary

Proper noun

1. 1
   A people made up of Scandinavian warrior merchants who travelled Eastern European river-roads from the eighth century, and whose settlements around Novgorod, Kiev/Kyiv and the Volga and Dnieper/Dnipro gave rise to the Rus' principalities.
2. 2
   Kievan Rus, the medieval East Slavic state established by these same warrior merchants in the 9th century, whose capital was in Kiev.
3. 3
   Any of the medieval East Slavic principalities ruled by this class, especially Kievan Rus.
4. 4
   The nation of Russia, especially in a transcendent or romantic sense referring to the history and culture of the country.
5. 5
   Initialism of Rural Utilities Service.

Noun

1. 1
   A person from Rus.