IPA: /ˈbæs.tʃən/
KK: /ˈbæs.tʃən/
A strong and secure place that protects against attacks or challenges, often used to describe a part of a fort or a metaphorical stronghold for ideas or beliefs.
The old castle served as a bastion against invaders for centuries.
Bastion → It originates from the Old French word *bastion*, meaning a projecting part of a fortification. The term is derived from the Latin *bastire*, meaning to build. A bastion refers to a structure built to provide defense or support in a fortification.
Think of a 'building' ('bastire') that 'projects' outwards to protect a fort — that's what a bastion is.