English edit

 
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Etymology edit

Named after Henry Knox, the Continental Army's chief of artillery during the American Revolution and the first United States Secretary of War.

Proper noun edit

Fort Knox

  1. A United States Army base located in Kentucky, United States.
  2. The United States Bullion Depository, a vault where gold reserves are stored.

Noun edit

Fort Knox

  1. (idiomatic) A place which is very difficult to get into.
    After the security upgrades, the facility was essentially Fort Knox.

Usage notes edit

  • The proper noun is commonly used in similes; for example, as safe as Fort Knox.