1) - a woman in a position of authority or control.
<special usage> a woman who is skilled in a particular subject or activity. (possibly sexually)
2) - a woman having an extramarital sexual relationship, especially with a married man.
<special usage> a woman loved and courted by a man
3) - a woman that is the dominating role in a dominate/submissive relationship or arrangement.
2) - Donna thought her husband had a secret mistress she didn't know about.
3) - My 'slave' knows that if he disappoints his mistress he will surely be punished.
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