United States of America
U.S.A.
U.S.
United States
America
All slang.

Americas*

North America, South America

United States of America

You forgot Central America

no one said anything about continents, he said Americas and central america is an america.

Actually, there are many ways to define a continent... according to the definition, america is one, two or three continents... or europe and asia are one or two... I just like to cause some butthurt

I've heard of America and Eurasia (or even Afro-Eurasia) as unified single continents, but I've never heard of Central America being considered its own continent. That seems illogical.

I think that the people from Costa Rica and Cuba are the ones who divide the continent in three... In my country America is just one big piece of land.

In my country, Argentina, America is one continent, which is politically divided in three sub-continent; North, Central and South America, but geographically it's just one continent. I don't see where is the division of South and North America.

The border between the geographical continents of North and South America (as we're taught in the US) is the Panama-Colombia border. Although some people say it's the Panama Canal.
It's sort of like how the Suez Canal is the border between Asia and Africa - the continents are technically connected, but the Suez Peninsula and Isthmus of Panama are very narrow compared to the bulk of the continents on the either side.

I don't think the Panama Canal is wide enough to be considered the division of the continent.