the capital of Latvia, on the Gulf of Riga at the mouth of the Western Dvina on the Baltic Sea: a port and major trading centre since Viking times. Pop: 620 847 (2015 est)
Riga in American English
(ˈrigə)
1.
seaport & capital of Latvia, on the Gulf of Riga: pop. 821,000
2.
Gulf ofinlet of the Baltic Sea, between NW Latvia & SW Estonia: c. 100 mi (161 km) long; c. 60 mi (97 km) wide