Fort Knox

English

Etymology

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

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

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