dame

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. Used formerly as a courtesy title for a woman in authority or a mistress of a household.
2. n. A married woman; a matron.
3. n. An elderly woman.
4. n. Slang A woman.
5. n. Chiefly British A woman holding a nonhereditary title conferred by a sovereign in recognition of personal merit or service to the country.
6. n. Chiefly British The wife or widow of a knight.
7. n. Chiefly British Used as the title for such a woman.

Century Dictionary and Cyclopedia

1. n. A mother.
2. n. A dam: said of beasts.
3. n. A woman of rank, high social position, or culture; a lady; specifically, in Great Britain, the legal title of the wife or widow of a knight or baronet.
4. n. A woman in general; particularly, a woman of mature years, a married woman, or the mistress of a household: formerly often used (like the modern Mrs.) as a title, before either the surname or the Christian name.
5. n. The mistress of an elementary school.
6. n. In Eton, England, a woman with whom the boys board, and who has a certain care over them; sometimes, also, a man who occupies the same position.

Wiktionary

1. n. UK The equivalent title to Sir for a female knight.
2. n. informal Slightly derogatory way of referring to a woman.
3. n. archaic Lady, woman.

GNU Webster's 1913

1. n. A mistress of a family, who is a lady; a woman in authority; especially, a lady.
2. n. The mistress of a family in common life, or the mistress of a common school.
3. n. A woman in general, esp. an elderly woman.
4. n. obsolete A mother; -- applied to human beings and quadrupeds.

WordNet 3.0

1. n. informal terms for a (young) woman
2. n. a woman of refinement