Prince

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.

The son of a king or emperor, or the issue of a royal family; as, princes of the blood.

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.

The chief of any body of men; one at the head of a class or profession; one who is preeminent; as, a merchant prince; a prince of players.

To play the prince.