city, metropolis, urban center - a large and densely populated urban area; may include several independent administrative districts; "Ancient Troy was a great city"

Calif., California, Golden State, CA - a state in the western United States on the Pacific; the 3rd largest state; known for earthquakes

national capital - the capital city of a nation

Costa Rica, Republic of Costa Rica - a republic in Central America; one of the most politically stable countries in Latin America