noun
fort
FORT/fɔːrt/
A defended enclosure built to resist attack.
The stone fort protects the harbor from attacks by sea.

Etymology
Latin fortis means “strong”; applied to a place, that quality became the name of a stronghold. A fort is thus a place defined by its defensive strength.
In context
very latest in 16th century military architecture it has a Bastion a ravalin and a Cavalier a ravalin is a triangular defensive structure that protects a vulnerable point of the fort
More examples
- The soldiers retreat behind the walls of the fort.
- Visitors can explore several historic forts along the coast.
- The children build a fort with blankets and chairs.
Forms
fort · forts
fortify verb — To strengthen a place against attack.
Similar words
- fortress
- Usually suggests a larger, more heavily defended structure.
- stronghold
- Can describe an entire defended area, not just an enclosure.