A mistress of a family, who is a lady; a woman in authority; especially, a lady.
- Used formerly as a courtesy title for a woman in authority or a mistress of a household.
- A married woman; a matron.
- An elderly woman.
- Slang A woman.
- Chiefly British A woman holding a nonhereditary title conferred by a sovereign in recognition of personal merit or service to the country.
- Chiefly British The wife or widow of a knight.
- Chiefly British Used as the title for such a woman.