Moscow

geographical name
Mos·​cow | \ ˈmä-(ˌ)skō How to pronounce Moscow (audio) , -ˌskau̇\
variants: or Russian Moskva \ mäsk-​ˈvä How to pronounce Moskva (audio) \

Definition of Moscow

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 U.S.S.R. and of Soviet Russia on the Moscow River population 11,563,000 — see muscovy — see also muscovite sense 1