I agree it's not the best word for it, but what I meant is that the elements are made to look and behave similar to their real-life or conceptual analogues. Think of it mostly as the software UI skeuomorphism: we are able to recognize the functions of the software faster because it is designed to look like something we know.
No, skeuomorphism involves ornamental details, which are at best hints about how something is to be used.
How you break-down the responsibilities of your system and name them is much much more important than that.