noun🔗ShareDonjon, donjon-tourThe fortified tower of a motte or early castle; a keep."The king retreated to the donjon, the castle's strongest tower, as the enemy breached the outer walls. "Le roi se retira dans le donjon, la tour la plus forte du château, lorsque l'ennemi perça les murs extérieurs.architecturebuildingmilitaryhistoryChat with AIVocabulary GamePractice Reading