Between every country in North, Central, and South America the U.S.A. is the only country with "America" used in its name. So suck my balls.
North, Central, and South America combined are The Americas. Latin America could also be used for most of Central and South America.
Let me clarify, In English, the plural form "The Americas" is often used to refer to the landmasses of North America and South America with their associated islands and regions while the singular form America is primarily used to refer to the United States of America.