n. A separate continental plate that existed from the Latest Precambrian to the Carboniferous, composed of a large part of central Russia, namely Siberia.

the extensive region of the former Soviet Union frequently referred to as a place where one is sent as a punishment or mark of disfavor.

a vast Asian region of Russia; famous for long cold winters

a mysterious region, containing both the remains of ancient civilizations and the utter wildness of nature