Fort - (Webster's 1828 Dictionary)
FORT, n. [L. fortis, strong.]
1. A fortified place; usually, a small fortified place; a place surrounded with a ditch, rampart, and parapet, or with palisades, stockades, or other means of defense; also, any building or place fortified for security against an enemy; a castle.
2. A strong side, opposed to weak side or foible.