Khalifa

Khalifa or Khalifah (Arabic: خليفة; commonly "caliph" in English) is a name or title which means "successor", "ruler" or "leader". It most commonly refers to the leader of a Caliphate, but is also used as a title among various Islamic religious groups and others. Khalifa is sometimes also pronounced as "kalifa". There were four caliphs after Muhammad died, beginning with Abu Bakr. The Khilaafat (or Caliphate) was then contested and gave rise to the eventual division of the Islamic Umma into two groups, the Sunni and the Shi'a who interpret the word Khalifa in differently nuanced ways.