Synonyms for

Fortress

Verb / ˈfɔ:rtrʌs / Another word for fortress — explore alternatives below. For syllable breakdowns and pronunciation, see this word on Syllablesworld.

Definition

a military building designed to be defended against an enemy attack

Synonyms & similar words

fort citadel stronghold castle bastion keep fortification redoubt bulwark garrison stockade wall rampart parapet barrier defense fort palisade enclosure protection security

Synonyms by register

Formal

stronghold citadel bastion redoubt

Informal

fort base hangout

Literary

keep rampart bulwark

Antonyms

opening weakness vulnerability undefended exposed unprotected

Common collocations

  • impenetrable fortress
  • ancient fortress
  • military fortress
  • secure fortress
  • attack the fortress
  • defend the fortress
  • abandon the fortress
  • siege the fortress

Word family

noun fortress
adjective fortified

Usage note

A fortress is a strongly fortified place. While 'fort' can be a synonym, 'fortress' implies a larger, more permanent, and more heavily defended structure.

Example sentences

  1. The fortress was built to protect the kingdom from invaders.
  2. The soldiers defended the fortress against the enemy army.
  3. The fortress walls were made of stone and were very high.
  4. The king lived in the fortress during times of war.
  5. The fortress had a moat filled with water to keep enemies out.

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