I just read this thread for the first time...
I would think of my self as "Sexually Dominant" but not anyone's Master. I guess my own interpretation has been that Dominance/submission, is a sexual preference, whereas Master/slave is a whole life style thing. But that's just my personal interpretation. We should get Webster to give us a whole BDSM dictionary. In a year and a half I've noticed a lot of discussion relating to terminology on this site. Mind you I am not faulting the discussion...I love it. It just seems that each of us has their own personal dictionary in our heads...there doesn't seem to be a standard to refer to.