feudal system

Từ điển WordNet v3.1 - WordNet Dictionary

noun

the social system that developed in Europe in the 8th century;
vassals were protected by lords who they had to serve in war
• Syn:
feudalism
• Derivationally related forms:
feudal (for: feudalism), feudalistic (for: feudalism), feudalize (for: feudalism)
• Hypernyms:
social organization, social organisation, social structure, social system, structure