Definition of "Capitol"

Any particular capitol, particularly:

1. (historical) The citadel and temples on the Capitoline Hill in Ancient Rome.

2. The town hall of Toulouse, France.  examples

3. The building in Washington, D.C., in which both houses of the Congress of the United States meet.  quotations  examples

   Quotations

   • ON January 20, 1953, I stood on a platform at the East Front of the Capitol in Washington to take the oath, administered by Chief Justice Fred M. Vinson, as the thirty-fourth President of the United States — an office I was to hold for eight years.

     1963, Dwight Eisenhower, Mandate for Change 1953-1956‎, Garden City, New York: Doubleday & Company, page 3

4. (US, with context or qualifier) The chief building in any state capital in which the state legislature meets.  examples