I've encountered a person learning English using "dress" for a piece of clothing that covers the top half of her body (and possibly her legs as well).
I was under the impression that "dress" used to mean clothing in general, but nowadays is more commonly used to mean "skirt".
However, I looked up Wiktionary and Cambridge Dictionaries Online, and both of them indicate it means a piece of clothing that covers the top half of the body and hangs down over the legs.
I'm not an expert on women's apparel. Was I mistaken in thinking that "dress" could be used for a synonym for "skirt"?