1. a building in which a state legislative body meets
2. the building in Washington, D.C., in which the U.S. Congress meets
Usage: capitalized when referring to the U.S. Capitol

Examples

• The state capitol building was completed in 1889.
• Tourists visit the Capitol to watch Congress in session.
• The governor delivered his speech from the capitol steps.
• Security around the U.S. Capitol has been increased.
• Each state has its own capitol building for the legislature.
• The dome of the Capitol is visible from miles away.