Americas as in consisting of North America and South America. The 'America' you're probably referring to is recognized globally as the 'United States of America', and while it does have the word 'America' in its name it is not considered 'America'. Another example can be seen with the VCT China region. Its name has the word 'China' in it, but it also includes all the other Chinese territories like Hong Kong and Taiwan, that are seperate regions than that of China itself, because all those subregions together make up the 'China' region; just like how the different North and South American subregions (Brazil, USA, Canada) come together to make the 'Americas' VCT region. I know I could probably come up with a better example than the China one but I can't think right now it's too late in the night. Hope that helps!