1. Used formerly as a courtesy title for a woman in authority or a mistress of a household.
a. A married woman; a matron.
b. An elderly woman.
3. Often Offensive Slang A woman.
4. Chiefly British
a. A woman holding a nonhereditary title conferred by a sovereign in recognition of personal merit or service to the country.
b. The wife or widow of a knight.
c. Used as the title for such a woman.
[Middle English, from Old French, from Latin domina, feminine of dominus, lord, master; see dem- in the Appendix of Indo-European roots.]
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