Simplon

[sim-plon; French san-plawn]
noun
  1. a mountain pass in S Switzerland, in the Lepontine Alps: crossed by a carriage road constructed 1800–06 on Napoleon's orders. 6592 feet (2010 meters) high.
  2. a tunnel between Switzerland and Italy, NE of the Simplon Pass: longest tunnel in the world. 12¼ miles (20 km) long.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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