fortress wall

Defensive stone perimeter

A fortress wall is the defensive perimeter of a fortified structure, typically thick stone or masonry designed to withstand siege and assault.

The term emphasizes both the wall's protective function and its association with strongholds: The fortress walls held against months of bombardment.

Figuratively, any formidable barrier: She built fortress walls around her emotions.

Related

castle · castle keep · siege · siege tower · under siege · stone · stone mason · tower · citadel · stronghold · bastion · defense · garrison · murder holes · archer · crenellation · barricade · gatehouse

Opposites
defensive structure type

fortress wallmoat

Defensive water ditch

ditch · trench · rampart · open field · ha-ha

permeability and access

fortress wallgateway

Point of access

breach · passageway · entrance · portal · opening

structural permanence

fortress walltent

Portable fabric shelter

canvas shelter

Family

fortress, wall, fort, fortify, fortification, fortified, forte, force, forced

Familiarity
Top 500,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G