Sir's counterpart (4)
I believe the answer is:
maam
(Other definitions for maam that I've seen before include "Polite address to Queen" , "Lady's address" , "Respectful address to the Queen" , "Formal address to a lady" , "HRH" .)
I believe the answer is:
maam
(Other definitions for maam that I've seen before include "Polite address to Queen" , "Lady's address" , "Respectful address to the Queen" , "Formal address to a lady" , "HRH" .)