However, you can use these options depending on the context:
* Dukesa: This is the most common and literal translation, borrowed directly from the Spanish word "duquesa".
* Asawa ng Duke: This translates to "wife of the Duke," which is a more descriptive way to refer to a duchess.
* Panginoon/Panginoong Babae: These words translate to "lord" and "lady" respectively, which can be used in a general sense to refer to someone of high social standing.
The best option will depend on the specific situation and the level of formality desired.