fortification

As a noun fortification

is fortification.

As a proper noun erebuni is

a fortification and city of the ancient kingdom of urartu, located in modern-day yerevan, capital of armenia; founded in 782 bc by king.

As nouns the difference between fortification and madrier

is that fortification is fortification while madrier is a thick plank, used for several mechanical purposes.

As nouns the difference between fortification and demilune

is that fortification is the act of fortifying; the art or science of fortifying places to strengthen defence against an enemy while demilune is a fortification constructed beyond the main ditch of a fortress, and in front of the curtain between two bastions, intended to defend the curtain; a ravelin.

As an adjective demilune is

in the shape of a half-moon, i.e. semicircular.

As nouns the difference between fortification and ringfort

is that fortification is fortification while ringfort is an ancient circular fortification of earth or stone, found especially in ireland.