n. | 1. | A woman having power, authority, or ownership; a woman who exercises authority, is chief, etc.; the female head of a family, a school, etc. |
| 2. | A woman well skilled in anything, or having the mastery over it. |
| 3. | A woman regarded with love and devotion; she who has command over one's heart; a beloved object; a sweetheart. |
| 4. | A woman filling the place, but without the rights, of a wife; a woman having an ongoing usually exclusive sexual relationship with a man, who may provide her with financial support in return; a concubine; a loose woman with whom one consorts habitually; as, both his wife and his mistress attended his funeral. |
| 5. | A title of courtesy formerly prefixed to the name of a woman, married or unmarried, but now superseded by the contracted forms, Mrs., for a married, and Miss, for an unmarried, woman. |
| 6. | A married woman; a wife. |
| 7. | The old name of the jack at bowls. |
v. i. | 1. | To wait upon a mistress; to be courting. |
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