Moscow

geographical name

Mos·​cow ˈmä-(ˌ)skō 

-ˌskau̇

variants or Russian Moskva

mäsk-ˈvä 

1

river 315 miles (507 kilometers) long in west central Russia in Europe flowing east into the Oka River

2

city and capital of Russia and formerly of the Soviet Union and of Soviet Russia on the Moscow River population 11,563,000 see muscovy see also muscovite sense 1