Dress & Robe
So this translation of 'Elle a une robe rouge' could be either 'She has a red dress' or 'She has a red robe', right?
in school they normally say that "robe" is dress in French, so the better translation would be "she has a red dress"
Interestingly, there are a few times when the French 'robe' is translated to English 'robe'.
'Le juge a une robe noire.' = 'The judge has a black robe'
I imagine this would also apply to academic dress (https://en.wikipedia.org/wiki/Academic_dress), so a graduate of York University would have a "red robe".