TOareaFan
Superstar
There's only one definition.
that is just not true. Sure there is one geo-political definition in that if you want to assign every country to one of the 7 continents then the definition is clear...every piece of land north of South America (including Greenland) is considered part of North America.
But to deny there are many other common use definitions of "North America" is simplistic and naive.
Lots of people define it as the 3 countries of Mexico, USA and Canada....geez, even the free trade agreement called NAFTA only includes those three countries.
Lots of people, rightly or wrongly, even exclude Mexico and lump them in with the other "Central American" countries and leave the definition of North America as simply Canada and USA.
Take one of the world's biggest events that is in the news these days...the World Cup. As they divide the world up for qualification purposes they create regions. The region that covers the countries that the technical definition of North America includes is called The Confederation of North, Central America and Caribbean Association Football (CONCACAF). Surely if the definition of what is North America was so clear and subject to only one single definition they would simply call this "North America" as they do with Europe and Asia. But, no, they define the region by including all the sub-components of the continent and, within their name, assign to part of it the name North America.