donjon

Từ điển WordNet v3.1 - WordNet Dictionary

noun

the main tower within the walls of a medieval castle or fortress
• Syn:
keep, dungeon
• Hypernyms:
stronghold, fastness
• Instance Hyponyms:
Black Hole of Calcutta
• Part Holonyms:
castle

• Từ đồng nghĩa / Synonyms:
  keep, dungeon