Mistress

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Mistress (plural Mistresses)

1. (archaic) Used as the title of a married woman before her name. Now used only in the abbreviated form Mrs.
   • 1855 December – 1857 June, Charles Dickens, “The Dreams of Mrs. Flintwinch Thicken”, in Little Dorrit, London: Bradbury and Evans, […], published 1857, →OCLC, book the second (Riches), page 408:

     The sound of Mistress Affery cautiously chaining the door before she opened it, caused them both to look that way.

2. (BDSM) Used as the title of a female dominant.

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• Master