noun

• (US) Any building or complex of buildings in which a legislature meets.
• (historical) Any citadel or complex of buildings similar to the Roman Capitol, particularly Italian and Roman citadels including temples to Jupiter, Juno, and Minerva.
• Any particular capitol
• (historical) The citadel and temples on the Capitoline Hill in Ancient Rome.
• The town hall of Toulouse, France.
• The building in Washington, D.C., in which both houses of the Congress of the United States meet.
• (US, with context or qualifier) The chief building in any state capital in which the state legislature meets.
• (historical) Alternative form of capitoul, the former chief magistrates of Toulouse, France. [(historical) The former chief magistrates of the city of Toulouse, France.]