Cardinal

Cardinal can mean many things


 * A type of bird (see Cardinal (bird))
 * An American football player (see Arizona Cardinals)
 * A baseball player (see St. Louis Cardinals)
 * Cardinal voting systems - a voting system which uses a rated ballot (see Rated ballot)
 * Cardinal ballot - a type of ballot used in cardinal voting systems (see Cardinal voting)
 * A Cardinal number (see Cardinal number) Where Cardinal ballots get their name.
 * a senior official of the Catholic Church (see Cardinal (Catholic Church))