One entry found for castle.
Main Entry: cas·tle
Pronunciation: kas-l
Function: noun
Etymology: Middle English castel "castle," from early French castel (same meaning), from Latin castellum "castle, fortress" --related to CHATEAU 1 a: a large building or group of buildings usually having high walls with towers and a surrounding moat for protection b: a large or impressive house 2: 3ROOK