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 mistress ·noun a title of courtesy formerly prefixed to the name of a woman, married or unmarried, but now superseded by the contracted forms, mrs., for a married, and miss, for an unmarried, woman.