| Term | Definition |
| Monotheism | Belief in One God |
| Polytheism | Belief in Many Gods |
| Atheism | Belief in NO God |
| Muslim | Person whose religion is Islam |
| Jew | Person whose religion is Judaism |
| Christian | Person whose religion is Christianity |
| Mosque | Where Muslims worship |
| Synagogue | Where Jews worship |
| Church | Where Christians worship |
| Rabbi | Jewish worship leader |
| Sunni | Largest sect is Islam |
| Shi'ite | Smaller of the two major Muslim Sects |
| The Great Schism | The first great split in the Christian Church |
| Reformation | Split between Protestants and Roman Catholics |
| Abraham | Patriarch who is revered by all three Western Religions |
| Isaac | Abraham's son, Jews trace their lineage through him |
| Ishmael | Abraham's son, Muslims trace their lineage back through him |
| Sarah | Isaac's mother |
| Hagar | Ishmael's mother |
| The Five Pillars | Five Duties of every Muslim |
| Muhammad | Islam's greatest prophet |
| Hajj | Journey to Mecca |
| Ramadan | Muslim month of fasting |
| Mecca | Holiest city for Muslims |
| Jerusalem | City that is important for all three Western Religions |
| Qur'an | Holy book of Islam |
| Bible | Holy book of Christianity |
| Torah | Holy book of Judism |
| Calligraphy | Beautiful handwriting |
| Arabic | Language of the Qur'an |
| Hebrew | Language of the Torah |
| Pope | Leader of the Roman Catholic Church |
| Martin Luther | Early leader of the Protestant movement |
| Gutenberg | Inventor of the movable-type printing press |
| Jesus | Believed by Christians to be the Messiah |
| Christians | Believe Jesus was the Savior |
| Jews | Believe Jesus was simply a rabbi |
| Muslims | Believe Jesus was a prophet |
| Green | Color that often represents Muslims |
| Star of David | Symbol of Jews |
| Crescent and Star | Symbol of the Muslims |
| Fish | Like the Cross, a symbol of Christianity |