| Term | Definition |
| allah | the one god in islam |
| caliph | in sunni islam, the successor of the prophet |
| fatwa | a legal opinion issued by an authorityaccording to a particular school of law often erroneously defined as an edict against someone or something |
| hajj | the holy pilgrimage to mecca for muslims |
| hadith | traditional report about the sayings and actions of the prophet muhammad |
| hijab | the veiling of women for the sake of modesty |
| hijrah | muhammad's migration from mecca to medina |
| Imam | in SHi'ite islam the title of a person carrying the initiatic tradition of the prophetic light |
| islam | complete trusting surrender to god |
| islamist | a person seeking to establish islamic states in which the rule of God is supreme |
| jihad | the muslims struggle against the inner forces that prevent god-realization and the outer barriers to establish the order |
| madrasa | traditional religious school teaching a narrow version of islam |
| muezzin | one who calls the people to prayer from a high place |
| shahadah | the central muslim expresssion of faith, there is no god but god, and muhammad is the messenger of god |
| shari'ah | the divine law of islam |
| shi'a | the minority branch of islam which tells that muhammad's legitimate successors were ali and a series of imams, a follower of this branch |
| sufism | the mystical path of islam |
| sunnah | the behavior of the prophet of muhammad, used as a model in islamic law |
| sunni | a follower of the majority branch of islam which tells that successors to muhammad are to be chosen by the muslim community |
| sura | a chapter of the holy qur'an |
| ummah | the muslim community |