1. A well-mannered and considerate woman with high standards of proper behavior.
2. 1. A woman regarded as proper and virtuous.
   2. A well-behaved young girl.
3. A woman who is the head of a household.
4. A woman, especially when spoken of or to in a polite way.
5. 1. A woman to whom a man is romantically attached.
   2. Informal. A wife.
6. Lady Chiefly British. A general feminine title of nobility and other rank, specifically:
   1. Used as the title for the wife or widow of a knight or baronet.
   2. Used as a form of address for a marchioness, countess, viscountess, baroness, or baronetess.
   3. Used as a form of address for the wife or widow of a baron.
   4. Used as a courtesy title for the daughter of a duke, a marquis, or an earl.
   5. Used as a courtesy title for the wife of a younger son of a duke or marquis.
7. Lady The Virgin Mary. Usually used with Our.
8. Slang. Cocaine.

[Middle English, mistress of a household, from Old English hlǣfdige.]

USAGE NOTE   Lady is normally used as a parallel to gentleman to emphasize norms expected in polite society or in situations requiring courtesies: Ladies and gentlemen, your attention please. I believe the lady in front of the counter was here before me. The attributive use of lady, as in lady doctor, is offensive and outdated. When the sex of the person is relevant, the preferred modifier is woman or female. Twice as many members of the Usage Panel in our 1994 survey preferred female and male to woman and man as modifiers in the sentence President Clinton interviewed both -=@rule3m=- and -=@rule3m=- candidates for the position of Attorney General.

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.