OAS, Organization of American States - an association of countries in the western hemisphere; created in 1948 to promote military and economic and social and cultural cooperation

Central American country, Central American nation - countries occupying Central America; except for Belize and Costa Rica these countries are characterized by low per capita income and unstable governments

Central America - the isthmus joining North America and South America; extends from the southern border of Mexico to the northern border of Colombia

capital of Costa Rica, San Jose - the capital and largest city of Costa Rica

Costa Rican - a native or inhabitant of Costa Rica