fortress

for-tress · noun

imported

Definitions

noun

  1. 1.

    A large, heavily fortified building or complex designed to be defended against attack.

  2. 2.

    A person, place, or thing that provides protection or is impregnable.

Forms

plural: fortresses

Phrases & expressions

  • •
    fortress mentality — an attitude of defensiveness or isolation
  • •
    fortress of solitude — a private, secure retreat

Related words

See also: castle, citadel, fort, fortification, fortify
Synonyms: bastion, castle, citadel, fort, stronghold

Etymology

From Old French forteresse ("strength, stronghold"), from Medieval Latin fortalitia, from Latin fortis ("strong").