Final answer:
The feudal system is a social/political structure where nobles swear loyalty to a king and the lower classes are subordinate to the nobility. Movable type is a printing process that uses individual characters. Vassal states are regions that owe allegiance to a central ruler.
Step-by-step explanation:
Feudal system: A social/political structure in which nobles swear loyalty to a king; in turn, lower classes are subordinate to the nobility.
Movable type: A printing process using individual characters which are arranged in lines and run through a mechanical press.
Vassal states: Regions acquired by alliance or treaty that owe allegiance to a central ruler.
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