Ruthenia — meaning in English

English meaning

Rus name The medieval East Slavic state, centered around Kiev, founded by Scandinavian traders and warriors starting in the 9th century.
Russia name A vast country spanning Eastern Europe and North Asia, with Moscow as its capital.

Ruthenia is used for these senses in English:

Rus 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. [from 19th c.]
Russia A transcontinental country in Eastern Europe and North Asia. Official name: Russian Federation. Capital and largest city: Moscow. It borders the Pacific and Arctic Oceans and the Baltic, Black, and Caspian Seas. Part of the Soviet Union from 1917 through 1991.

name A vast country spanning Eastern Europe and North Asia, with Moscow as its capital.
name Historically, also used to refer to the Russian Empire (1721–1917) or, informally, the former Soviet Union.