How to say "bastion" in Japanese

• 牙城がじょうCommon
  nounA stronghold, especially of an enemy or opponent; the inner citadel from which resistance is mounted. Use it for the figurative 'bastion' — a rival's stronghold or power base — in political and military writing.
  あの村むらが敵てきの最後さいごの牙城がじょうです。↗

  That village is the enemy's last stronghold.
• 稜堡りょうほ
  nounThe literal bastion of fortress architecture — an angled projection built into a fortification's walls. Less common, and seldom the word you want unless writing about fortifications; for a figurative bastion, use 牙城.

For 'bastion' in the sense of a stronghold — especially one held by an enemy or opponent — use 牙城; 稜堡 is the less common term for the literal bastion of fortress architecture.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 牙城がじょうstronghold (esp. of an enemy or opponent)
• 稜堡りょうほbastion