| A | B |
| Oasis | A small area in a desert that is watered by springs or wells. |
| Nomad | A member of a group that moves from place to place in search of food, water and grazing lands for their herds. |
| Muslim | Believer in Islam |
| Shia | Group of Muslims who believed the descendants of Ali should rule the Muslim Empire after Muhammad's death |
| Sunni | Muslims who accepted Umayyad rule after Muhammad's death |
| Sheikh | Leader of an Arab tribe |
| Monotheism | A belief in one god. |
| Qur'an | The sacred book believed by Muslims to be the written record of God's word. |
| Crusader State | Territory controlled by Europeans, in the Holy Land, during the Crusades |
| Sunna | Guiding rules of Islam based upon Muhammad's life and actions |
| Mosque | Muslim house of worship |