Feudalism – A social and political system in medieval Europe where land was owned by lords and worked by peasants or serfs in exchange for protection.Example: Kings granted land to nobles in return for military service—this was feudalism in action.Manor – The land or estate owned by a noble during the medieval period. It included the lord’s house, farmlands, and villages.Example: Peasants lived and worked on the manor under the lord’s rule.Knight – A warrior of noble birth trained in arms and chivalry, often serving a king or lord during the medieval era.Example: Knights followed the code of chivalry and protected their kingdom.