| Term | Definition |
| Monk | A man who devotes his life to religion and lives in a monastery |
| Nun | A woman who devotes her life to religion and lives in a convent |
| Monastery | A community where monks live, study, and pray |
| Convent | A community of nuns |
| Missionary | A person who teaches a religion to people with different beliefs |
| Monarch | A King or Queen who is a supreme leader |
| Serf | A person who lived on a farmed feudal land |
| Knight | A fuded warrior trained and prepared to fight on horseback |
| Chivarly | A knights code of behavior |
| Guild | A group of crafts people or merchants who are united by a common intrest |
| Lady | A woman of nobility |
| Epidemic | A disease that spreads easily |