In Mexico, there are distinctions between sopas, the literal definition of which is soup.
One type of sopa is sopa aguada (wet soup), which can be caldo (broth), consomé (consomme), or crema (cream soup). In rare instances, sopa aguada is called just sopa: Sopa Azteca (Aztec soup) or Sopa Tarasca (Tarascan soup) are two examples.
The second type of sopa is sopa seca, which, to the foreigner, doesn't seem like 'soup' at all. Sopa seca refers to standard Mexican-style red rice, espagueti o macaroni con crema (spaghetti or macaroni served with cream sauce), or fideos, a thin pasta more like vermicelli than any other kind of pasta.
I borrowed this from México Cooks which is a website well worth reading. It has a wealth of information about Mexico as well as Mexican cooking.
Also be aware of the spelling -- sopa, because sope is something different.