From Teflpedia

America (/əˈme.rə.kə/) along with its adjective American (/əˈme.rə.kən/)are English ambiguities. This is usually resolvable in context.

Informally, America may refer to the United States. It may also refer to the continents of North America, or the combined continents of North and South America. The term may be sensitive in parts of the American continent that aren't the USA.

For example, in Spanish, "American" meaning "related to the United States" may be translated as "estadounidense", which literally corresponds in English to something like "United Stative".