prince

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A male member of a royal family other than the monarch, especially a son of the monarch.
2. n. A man who is a ruler of a principality.
3. n. A hereditary male ruler; a king.
4. n. A nobleman of varying status or rank.
5. n. An outstanding man, especially in a particular group or class: a merchant prince.

Century Dictionary and Cyclopedia

1. n. A sovereign; a king; by extension, a royal personage of either sex.
2. n. The title of the ruler of a principality: as, the Prince of Waldeck; the former Princes of Orange. Few such principalities now exist in Europe; they are either small in extent (as Montenegro and Monaco), or in certain relations subordinate in name or reality to a suzerain (as Bulgaria), or to a central government (as Lippe, Waldeck, and the other principalities of the German empire).
3. n. A title of nobility in certain countries on the continent, superior to duke: as, Prince Bismarck; Prince of Condé. There are, however, many exceptions in the relative standing of particular titles, owing to the fact that many princely designations are little more than courtesy titles, or to the circumstance that some princely titles are historically and intrinsically of comparatively small im portance, while some ducal titles, on the contrary, are of the highest, sometimes even of sovereign dignity. Prince is the translation of the chief Russian title of nobility (knyaz).
4. n. A courtesy title given to non-regnant members of royal families, and often confined to the younger sons of the sovereign: as, Prince Arthur (of Great Britain); Prince Henry (of Prussia); the eldest sons are usually called prince with a territorial title (as Prince of Wales, in Great Britain; Prince of Naples, in Italy), crown prince (Greece), prince imperial (Austria, Germany, etc.), prince royal (Denmark, Sweden, etc.), or duke with a territorial title (as Duke of Sparta, in Greece; Duke of Brabant, in Belgium).
5. n. A courtesy title given in some relations to dukes, marquises, and earls in Great Britain. See the quotation.
6. n. One who is preëminent in his class or profession: as, a merchant prince; a prince of good fellows.
7. n. A title of the emperor of Austria (as Grand Prince of Transylvania).
8. To play the prince; put on a stately arrogance: with a complementary it.

Wiktionary

1. n. A non-royal high title of nobility, especially in France and the Holy Roman Empire.
2. n. A common name of the mushroom Agaricus augustus.
3. n. A type of court card used in Tarot cards, the equivalent to the Jack.

GNU Webster's 1913

1. n. The one of highest rank; one holding the highest place and authority; a sovereign; a monarch; -- originally applied to either sex, but now rarely applied to a female.
2. n. The son of a king or emperor, or the issue of a royal family.
3. n. A title belonging to persons of high rank, differing in different countries. In England it belongs to dukes, marquises, and earls, but is given to members of the royal family only. In Italy a prince is inferior to a duke as a member of a particular order of nobility; in Spain he is always one of the royal family.
4. n. The chief of any body of men; one at the head of a class or profession; one who is preëminent
5. v. rare To play the prince.

WordNet 3.0

1. n. a male member of a royal family other than the sovereign (especially the son of a sovereign)