castle
n. countable A2 Elementary Oxford US //ˈkæsəɫ// UK //kˈɑːsəl// cas·tle
n. a large, strong building built in the past by a ruler or important person to protect against attack. You often see them in history books or old European cities.
n. a large fortified building or group of buildings, typically dating from the medieval period and serving as a residence for nobility. Often used metaphorically to describe a place of safety or isolation.
The king lived in a stone castle on top of the hill.
Tourists often visit the medieval castle to see the thick stone walls and the deep ditch surrounding the main gate.
While many structures from that era have crumbled into ruins, this castle remains perfectly preserved, offering a rare glimpse into the defensive architecture of the fourteenth century.