I prefer the term "Ms.".  The term “Ms.” is used when you are not sure of a woman's marital status, if the woman is unmarried and over 30 or if she prefers being addressed with a marital-status neutral title.  I am definitely over 30. I am not a fan of my marital status having any bearing on my title. "Lady, Madame, or MLady" can be used by newer submissives wanting my consideration.  ...