You're all talking about Pot Roast and she's talking about just Roast (think like prime rib, for example).
Pot Roast is the cook it til it falls apart all shreddy type.
I think she's asking more about something like this:
http://simplyrecipes.com/recipes/roast_beef/
(I've never tried that recipe, so I don't vouch for it or anything lol).