What does the word fort mean?

Usage examples for fort

  1. " Jim," she cried, " Hal is in the fort. – A Tale of the Summer Holidays by G. Mockler
  2. Suggested subjects:- 1. Holding the fort. – Composition-Rhetoric by Stratton D. Brooks
  3. And engaged you to serve in their fleet, in the attack on this fort? – The Phantom Ship by Captain Frederick Marryat