fortress

• Grande construction ou ensemble fortifié, conçu pour la défense militaire, généralement entouré de murs épais et d'ouvrages défensifs.

A noun referring to a large, strong building or complex designed for military defense, typically fortified with thick walls and defensive structures.

1. Military fortificationB1formal

   A large, strong building or complex designed to defend against attack.

   forteresse

   • The ancient fortress stood on the hill for centuries.
   • Soldiers defended the fortress from the invading army.
   • The fortress walls were over ten feet thick.

   Synonymesbastionbulwarkcastlecitadeldefensefastnessfortgarrisonredoubtstronghold

2. Place of safetyB2informal

   A place or situation that provides a sense of security or protection.

   refuge, lieu sûr

   • Her home was her fortress against the outside world.
   • The library felt like a fortress of quiet and calm.
   • He built a fortress of privacy around his personal life.

   Synonymesasylumhavenrefugesanctuaryshelterstronghold