a woman having power, authority, or ownership; a woman who exercises authority, is chief, etc.; the female head of a family, a school, etc.-a woman well skilled in anything, or having the mastery over it.-a woman regarded with love and devotion; she who has command over one's heart; a beloved object; a sweetheart.-a woman filling the place, but without the rights, of a wife; a concubine; a loose woman with whom one consorts habitually.-a title of courtesy formerly prefixed to the name of a woman, married or unmarried, but now superseded by the contracted forms, mrs., for a married, and miss, for an unmarried, woman.-a married woman; a wife.-the old name of the jack at bowls.-to wait upon a mistress; to be courting.