Lady n. : A woman who looks after the domestic affairs of a family; a mistress; the female head of a household.

Lady n. : A woman having proprietary rights or authority; mistress; -- a feminine correlative of lord.

Lady n. : A woman to whom the particular homage of a knight was paid; a woman to whom one is devoted or bound; a sweetheart.

Lady n. : A woman of social distinction or position. In England, a title prefixed to the name of any woman whose husband is not of lower rank than a baron, or whose father was a nobleman not lower than an earl. The wife of a baronet or knight has the title of Lady by courtesy, but not by right.

Lady n. : A woman of refined or gentle manners; a well-bred woman; -- the feminine correlative of gentleman.

Lady n. : A wife; -- not now in approved usage.

Lady n. : The triturating apparatus in the stomach of a lobster; -- so called from a fancied resemblance to a seated female figure. It consists of calcareous plates.

Lady a. : Belonging or becoming to a lady; ladylike.

Lady : The day of the annunciation of the Virgin Mary, March 25. See Annunciation.

Example:
how long does it take for a Lady bug to hatch? How do i know how they look like Lady bug larvae?

Taxonomy
Lady, lord, wife, Gentlemen, Lady Smith, ladies and gentlemen, free encyclopedia, bread, rank, family name, Men and Women, Lady Jane, female equivalent, cleaning lady, Jane Smith, Lord John, knight, store clerks.

Defination from the web:
lady is the female equivalent of a lord, the counterpart of a gentleman, or any adult woman, though this usage is constrained. ... This meaning is retained in the United States, however, in the title First Lady for the wife of an elected official. ...