inner bailey		the area along the tops of the walls where soldiers could defend the castle
battlement		a notched battlement made up of alternate crenels and merlons
allure		a small tower above and on one of the main towers, usually used as a look out point
ward		a small tower at the end of a curtain wall or in the middle of the outside wall
drawbridge		a wooden bridge capable of being raised or lowered
curtain wall		the inner stronghold of the castle
turret		a narrow wall along the outer edge of the wall walk to protect soldiers against attack
portcullis		protective wall at the top of a castle
arrow loop		all the towers, bridges, and barriers built to protect each entrance
garderobe		A narrow vertical slit cut into a wall so arrows could be fired through from inside
bastion		a castle wall enclosing a courtyard
hall		latrine (toilet)
parapet		a deep trench usually filled with water that surrounded a castle
keep		courtyard within the walls of the castle
donjon		main living quarters of a medieval castle or house
crenelation		the jail, usually found in one of the towers
gatehouse		circular or polygonal end of a tower or chapel
wall walk		vertical sliding wooden grille shod with iron, hung in front of a gateway, let down to protect the gate
bailey		passage behind the parapet of a castle wall
dungeon		courtyard or bailey
moat		open area in the center of a castle
apse		the inner stronghold (keep) of a castle