What are the fifty something words? and why do I have to always keep writing : using namespace std; I know STD stands for the standard library, but what are the words in the library and what do they do? I just fininshed hello world, and I was playing around with the "cout<<" thing, but I think it would be easy for me to have these words as a refference that I could look up, you know and have a general idea of what they mean and/or do. And what exactly is an argument? And what exactly in these terms is an integer? like 1? 2? 0?