Joan of Arc As A Leader There have been many leaders over the course of time, some have been successful and some have not, some have been good leaders and some have been bad. To decipher between the two is difficult if the definition for "leader" is unknown. A leader is defined by the Webster's New World Dictionary as: n. 1. a person or thing that leads; directing, commanding, or guiding head, as a group or activity. There are many synonyms for a leader, examples of some are: master, ruler, captain, chief, commander, principal, director, head, and chieftain. A good leader is someone who is honorable, respectable,