DictionarybastionDefensive stronghold
noun

bastion

BAS-chun/ˈbæstʃən/

A fortified strongpoint protecting a place.

The stone bastion projects from the walls protecting the town.

An angular stone bastion projects from thick defensive walls in front of a town.
Etymology

French bastillon was a diminutive of a word for a fortress or fortified building. A bastion’s literal role as a defensive projection supplies the image of an institution protecting a belief or way of life.

In context

Chronicle - Medieval History Documentaries2:03
It was a defensive bastion used by King Sancho III the Great to halt the advance of Islam.
Inside Spain's Perfectly-Preserved Medieval Fortresses

More examples

  • The defenders position a cannon inside the stone bastion.
  • Soldiers guard the two outer bastions.
  • A moat surrounds the fortress and its projecting bastions.

Forms

bastion · bastions

Similar words

stronghold
Can name a whole defended place rather than a projecting fortification.
bulwark
Emphasizes protection against a threat rather than the place defended.