IPA: /ˈkrɛnəl/
KK: /ˈkrɛnəl/
A notch or opening in a wall, especially in a castle, that allows for shooting or observation while providing protection.
The soldiers took their positions behind the crenels to defend the castle.
Crenel → The word 'crenel' comes from Old French 'crenel', meaning a notch or indentation, which is derived from the Latin 'crenella', a diminutive of 'crena' (meaning notch or groove). A crenel refers to the notched or indented part of a battlement or wall.
Think of a 'notch' or 'indentation' when you picture a crenel, as it describes the notched design found in battlements.